6x-4x=8.4怎么解？
9个回答
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3.6÷0.6=
6.4÷0.8=
5.5÷1.1=
5.6÷8=
4.2÷3=
8.4÷0.21=
2.1÷0.3=
0÷1.5=
9.3÷3=
9.8÷14=
2.5×0.1=
2.7÷0.09=
200×0.03=
6.6÷11=
12.5×8=
0.56÷0.8=
0.3×0.3=
3.2﹣1.8=
395.5×100=
2.43×1.2=
1.25×0.4=
0.001+10.099=
0.9×0.9=
4×0.2=
0.9×0.7=
1.5×0.4=
1.2×5=
3.6×0.05=
3×0.4＝
5÷0.1＝
1－0.44＝
9÷0.3＝
1÷0.01＝
1.25×0.08＝
6x－x＝
x－0.7x＝
a－0.4a＝
3a×a＝
6a2－4a2＝
10x－x＋1.8x＝
2.8÷7=
0.3÷0.2=
0.57÷0.1=
32÷0.04=
16-5.7=
0.12×5=
0÷3.5=
3.9÷0.39=
7÷5=
8x+6x=
6.5b-5.5b=
0.52=
0.5×2=
6x+3x-4x=
3.6a+5.4a+a=
1.5×0.6＝
3.2×0.2＝
2.3×1＝
1.8÷0.3＝
3.6÷2＝
14÷0.7＝
8.4÷4＝
2.4×5＝
8-0.55=
4.8×0.5=
1.2÷0.6=
8.5+4.7=
10÷0.25=
0.5÷0.05=
0.24÷0.4=
4.5÷0.09=
5×0.5=
0.6×0.7=
4.4×0.1=
1.3×0.5=
1.2×4=
0.8×5=
8.5×10=
2.5×0.2=
0.27÷0.3=
0.2×1.01=
1.24÷0.4=
80÷0.04=
0.6×1.2=
10÷0.25=
0.64×0.4=
0.7×1.8=
9.9÷0.01=
8.1÷0.9＝
0.65÷1.3＝
0.36÷0.4＝
3.6×2＝
4.5×0.2＝
8.65＋1.5＝
0.32÷1.6＝
7.5÷1.5＝
1.2+4.5＝
0.28×10＝
6.87－0.87＝
2.5×8＝
0.1－0.01＝
8.65×0＝
0.2×0.2×0.2＝
100×0.7＝
2.8÷0.7＝
0.6×8=
1.2×0.4=
2.5÷5=
21÷0.7=
0.2×0.9=
3.6÷0.4=
0.45÷9=
0.05×8=
2.4×5=
0.25×4=
7﹣3.58=
12.75﹣2.5=
14÷0.5=
2.7×30=
14.5﹣2.9=
10x+11x=
0÷0.479=
5a﹣a=
5×0.04=
4.8+4.08=
3.6÷0.2=
0.21×0.3=
0.4=
1.2÷4=
0.36÷12=
2b-0.5b=
10-0.72+9.28=
2.5×0.4÷2.5×0.4=
450÷90=
0.7×100=
0.8×125=
12.5×0.1=
+16=
10-9.92=
9.8÷0.01=
0.64÷1.6=
0.9×0.8＝
0.8×1.2＝
0.12×50＝
60×0.8＝
1.8×0.04＝
0.15×0.4＝
1.3×0.004＝
5.8－0.8×5＝
3.5×0.2=
10÷0.5=
6×0.25=
0.63÷0.9=
1.8×0.4=
0.99÷0.01=
1.2×4=
3.9×0.01=
0.24×0.1=
0.125×0.8=
0.27÷0.03=
0.72÷3=
500×0.2=
0.54÷0.9=
1.25×11×0.8=
4.2÷0.2=
0.39×0÷9.54=
0.66÷0.11=
0.45÷0.001＝
10÷2.5＝
4.2÷1.4＝
7.2÷4＝
2.8÷0.7＝
1.8×0.4＝
0.56÷0.8＝
2.4÷0.04＝
32×0.2=
0.25×0.8=
4÷0.4=
0.63÷0.7=
56×0.99
0.79×0.52
5.61÷7.03
632÷6.98
0.25×4=
9.1÷0.7=
0.56×100=
4.5÷0.9=
3.3×0.4=
6.4÷0.08=
0.81÷0.9 =
5.1÷1.7=
1×0.815=
15÷0.15=
4.2÷1.4=
1÷0.05=
0.3×0.2=
2.4×10=
4.2÷0.7=
3.6÷12=
7.5+0.15=
1.2×5=
9.1-0.7=
15×0.6=
0.8-0.35=
0.78÷0.3=
0.54÷0.9=
5.6+1.65=
0×4.75=
4.2÷0.42=
3.6÷0.4=
1÷0.25=
4×0.8=
0.1÷0.05=
7.2×0.3=
12-4.3=
0.45+0.55=
36÷0.01=
0.8×0.125=
0.56÷0.7=
0.36÷0.4÷9=
2.4÷4×0.3=
3.2×0.3=
0.04×0.2=
6.05×7=
1.25×8=
2.1×0.4=
0.05×0.4=
3.5×0.1＝
43÷0.1＝
200×0.04＝
12-1.2＝
1.3×0.5＝
0.42÷0.6＝
6.3÷0.7＝
0.21×0.3＝
5.69÷0.5＝
5.5÷11＝
0.32=
4.8÷0.3=
0.42÷0.6=
0.01÷0.1=
3.2×0.5=
22-19.7=
0.125×0.8=
1.7×0.03=
0.24÷3=
21.8÷2=
0.57÷3=
2.4÷4=
0.56÷8=
4.2÷7=
7÷5=
0.3÷2=
3.5×0.1＝
43÷0.1＝
200×0.04＝
12-1.2＝
1.3×0.5＝
0.42÷0.6＝
6.3÷0.7＝
0.21×0.3＝
5.69÷0.5＝
5.5÷11＝
2×0.48=
0.81÷3=
0.5×2.4=
4×0.24=
3.2÷0.4=
0.05×20=
8.2÷0.01=
2.5×4=
0.35÷7=
4÷0.2=
9.8-0.6=
80÷1000=
4.3+5=
1.25×0.8=
17×40=
11÷15=
18÷0.6=
1÷0.1=
39÷13=
3÷5=
1.8×0.4=
1.6÷8=
0.28÷0.4=
12.1÷1=
3.25÷0.01=
6.8×100=
2.2÷0.2=
0÷0.19=
0.64÷0.32=
0.7×1.2=
40×0.25=
2.9÷2.9=
0.24÷0.6=
1.8×0.3=
24.48÷24=
0.29×0.07=
2.1×0.3=
0.5×0.8=
3÷0.5=
2.1÷0.3=
0.37÷0.1=
0.25×4=
3.6÷6=
4×0.23=
3÷2=
0.64÷0.8=
7.5÷2.5=
8.8÷11=
25.25÷25=
0.16×4=
0.24÷0.6=
2.5×4×0.5=
3.3÷0.1=
2.5×7×0.4=
6.3×2.7+3.7×2.7=
3.04×0.1=
5.6÷0.8=
4.38÷0.8=
0.7×0.33=
2×1.3×0.5=
15÷0.5=
100－0.18=
1.6×0.5=
0.35×0.4＝
7.32＋2.68＝
5.01－3.83＝
0.55÷1.1＝
12÷0.8＝
0.8×1.25＝
1.08÷0.06＝
7.09÷7.09＝
34÷0.17＝
0.125÷2.5＝
×5＝
0.72×5＝
2.7×0.3＝
12.5×80＝
84÷0.4＝
4.2÷7＝
0.9÷0.3＝
24÷1.2＝
81÷0.5=
0.65÷0.01=
4.8÷0.06=
9÷5=
0.3×0.3×0.3=
0.25×7.8×4=
0.95×101=
3.5×0.2＝
10÷0.5＝
6×0.25＝
0.63÷0.9＝
1.8×0.4＝
0.99÷0.01＝
1.2×4＝
3.9×0.01＝
4-0.9＝
3.7+6.4＝
4.5÷0.9＝
9÷2＝
42＝
0.52＝
0÷234＝
42×5＝
10÷（2.5×2）＝
2.5×2×0.8＝
0.54+0.06=
0.73+0.94=
9.8－5.9=
10－0.8=
2.36×10=
8－0.7+0.3=
0.06×5=
0.9×100=
0×5.4=
4－0.17=
2.5×0.4=
4.5÷0.9=
0.28÷7=
1.5×2-2=
0.99÷0.1=
1.09+0.1=
3.5×30=
1.9×99+1.9=
0.8÷0.2=
4÷0.4=
0.3÷3=
4.9÷7=
4.4÷1.1=
7.2÷4=
1÷0.25=
3.9÷0.3=
8.01－4.9=
0.12×0.5=
3.5＋3 =
14.21÷7=
7.5÷0.25=
0.1÷0.01=
0.125×8=
0.36÷0.4=
0.63÷0.9＝
0.8×4＝
7－0.35＝
3.5÷7＝
2.7÷0.9＝
0.036÷0.012＝
8＋2.04＝
0.1÷0.05＝
1÷0.25＝
8.79×0＝
2.1÷7=
0.9＋2.3=
13×6=
1.5×6=
0.1×0.2=
3.2-0.6=
2.5×11×4=
1.02÷0.1=
1.25×0.8=
10-8.9=
0.4×0.02=
0.63÷0.9=
0.9÷0.01=
0.7+0.23=
16÷1.6=
1.8×0.1=
+7＝
21.5+9.5＝
2.5×0.4＝
2﹣0.01＝
0.75÷0.3＝
1﹣ ＝
+ ＝
3.5÷100＝
0.47÷0.1＝
12.5×1.6＝
7.65－0.5＝
0.27＋1.03＝
3－2.96＝
0.11＋7＝
0.47＋0.5＝
0.1－0.01＝
4×0.5＝
0.6×100＝
1.5×4=
0.2×0.5=
1.7×0.03=
4.8÷4=
2.7÷0.9=
60÷0.4=
53. 根据543×46=
24978，直接写出下面算式的结果。
5.43×46=
54.3×4.6=
5.43×4.6=
0.543×46=
543×0.46=
5.43×0.46=
0.0543×4.6=
5.43×0.046=
0.543×0.046=
0.9-0.45=
100×0.45=
3.6÷0.12=
6.3÷0.7=
4.8÷2.4=
1.25×0.8=
0.6+0.38=
4.2×0.4=
14-6.4=
0.5×1.1=
0.7÷0.35=
0.25×40=
2.3×5=
0.3＋0.01 =
4÷0.5 =
1.25×17×0.8=
0.32×100=
6.7－2.3 =
2.3÷0.01=
4.36×0÷9.5＝
4.5×2=
4×2.5=
2.4× 0.5=
6.95－1.95－0.7=
8.4÷4=
9.9÷0.1=
0.8 ÷2＋2 =
6.8+5.5-6.8=
0.5×200=
8.4÷4.2=
1.32-0.8=
0.5×0.1×100=
1.6÷0.08=
5.5×0.3=
0.52=
4.5-（3.5-0.7）=
6÷5＝
2.5×4＝
20×0.5＝
4.8÷1.6＝
1.5×5＝
10﹣4.5＝
0.39÷3＝
7.2÷4＝
3.25+2.5＝
3.68﹣2.99＝
60×0.3=
22×0.4=
0×2.36=
0.7×0.01=
0.5×0.06=
4.99×1=
1.05×0.2=
0.02×0.2=
4.2÷0.7=
3.6÷18=
1.12÷12=
1.2÷0.6=
9.1×0.13=
0.15×40=
÷6=
5.2÷13=
7.1÷0.71=
5.6÷0.08=
6÷1.5=
0.36÷3=
0.02×500＝
25×0.04＝
0.3×1.4＝
3.2×2－6.4＝
8.08÷8＝
5.4÷0.54＝
1－0.09＝
75÷3÷0.5＝
1÷0.125=
8÷10=
0.43+3.57=
7.25-3=
35÷3.5=
12.5×0.8=
0.22+0.88=
7.2×0.01=
1-0.56=
0×0.98=
0.76+0.4=
2.95-0.5=
0.2×0.4=
7.5÷100=
2-0.3+0.7=
9.18÷9=
10÷4=
6.9+3.1=
10. 8×100=
0.9+1.5-0.9+1.5=
68＋9＝
50－4＝
0.9×0.8＝
7.2÷9＝
63÷3＝
4.2×2＝
4×0.5＝
2.1－0.7＝
3.3÷0.3＝
4×0.25＝
1.65+0.25＝
7.7﹣1.1=
6.36﹣2.6＝
25÷5＝
5×5÷5×5
1.7+3.3×0.2
1.25×8＝
16×0.5＝
36÷0.9＝
360÷100＝
0.2×55＝
2.6÷0.2＝
2.4×6＝
3.2÷4＝
3.6÷6＝
7.8÷6＝
14÷4＝
6.6÷11＝
56.7÷7＝
8.8÷4＝
69. 根据208×75=
15600 ， 直接写出下列各题的得数。
208×7.5=
2.08×7.5=
20.8×7.5=
2080×0.75 =
1.2+4.5＝
0.28×10＝
6.87－0.87＝
2.5×8＝
0.1－0.01＝
8.65×0＝
0.2×0.2×0.2＝
100×0.7＝
2.8÷0.7＝
100÷25=
1.5×6＝
0.2×0.5＝
9.6÷4＝
3.5×10＝
2.7÷9＝
100×0.9＝
0.85﹣0.05＝
0.7+0.23＝
42×0.3＝
2a﹣a＝
3.9÷13=
3.6÷12 =
8.1÷27 =
0.04÷2=
0.88÷4 =
1.25÷5 =
4.8÷1.2=
15÷0.5=
5.6÷0.8=
0.9÷10=
0.42÷0.6=
15.9÷3=
0.77÷0.7=
3.03×100=
0.3×0.8=
0.72÷0.09=
0.22÷0.1=
7.3÷0.73=
1.3×0.5＝
2.5×6＝
1.8×0.4＝
1.6×0.5
9.1﹣2.8＝
4.6+3.7＝
3×2.8＝
1.9×0.3＝
1.25×2.3×0.8＝
2.5×5.6×4＝
10-0.98=
1.56+2.44=
2÷8=
4÷0.01=
0.5×0.8=
25×0.4=
0÷0.99=
4.5÷0.9=
3.5×0.2＝
10÷0.5＝
6×0.25＝
0.63÷0.9＝
1.8×0.4＝
0.1÷0.01＝
0.7＋0.33＝
3.9×0.01＝
1.3×99＋1.3＝
2.4÷0.2＝
3.8×0.5＝
10.5÷0.5＝
0.8×5×0.2＝
4.2÷0.07＝
0.39÷1.3＝
0.6×4÷0.6×4＝
8÷2.5÷0.4＝
78. 根据15×64=
960，直接写出下列各题的得数。
0.5×64=
15×0.64=
0.015×64=
1.4×0.2=
3÷0.5=
0.7×0.9=
5.8÷100=
0.5×32=
24÷0.3=
2.8÷0.2=
3.9÷0.01=
0.2×7×0.5=
（2.5+0.9）×0.4=
1.2×0.5=
88÷0.22=
1.1×1.1=
10-0.125×8=
3-0.9=
8.97+1.03=
3.9+3.7+6.3=
4÷0.25 =
2.4×5=
0.24÷0.4=
3×8×0.125=
7.3-6.5=
7.6+2.4=
0.25×8 =
0.56÷7=
500×0.02=
45÷4.5=
10÷0.01=
0.22+0.8=
10-2.05=
3.5×0.4=
3－0.9＋0.1=
0.7×0.5＝
3.6÷4＝
10×0.01＝
0.12÷12＝
7÷2＝
5.4－4.5＝
2×1.25＝
5×2.02＝
6.6÷0.6=
1.8×0.2=
0.48÷0.6=
3.46+2.54=
1÷0.25=
2-1.7=
0.8×10.1=
2.4×0.5=
40×1.2＝
25×0.4 ＝
6=
29÷18＝
2.4×0.5＝
3.6÷0.06＝
1÷3＝
6.8÷0.5=
4.2÷0.25=
2.1÷0.2=
1.9÷5=
6÷1.5=
6.8×2=
4.2×4=
2.1×5=
1.9×0.1=
6×0.5=
0.1－0.01＝
6.87－0.87＝
6.4÷0.8=
5.5÷1.1=
5.6÷8=
4.2÷3=
8.4÷0.21=
2.1÷0.3=
0÷1.5=
9.3÷3=
9.8÷14=
2.5×0.1=
2.7÷0.09=
200×0.03=
6.6÷11=
12.5×8=
0.56÷0.8=
0.3×0.3=
3.2﹣1.8=
395.5×100=
2.43×1.2=
1.25×0.4=
0.001+10.099=
0.9×0.9=
4×0.2=
0.9×0.7=
1.5×0.4=
1.2×5=
3.6×0.05=
3×0.4＝
5÷0.1＝
1－0.44＝
9÷0.3＝
1÷0.01＝
1.25×0.08＝
6x－x＝
x－0.7x＝
a－0.4a＝
3a×a＝
6a2－4a2＝
10x－x＋1.8x＝
2.8÷7=
0.3÷0.2=
0.57÷0.1=
32÷0.04=
16-5.7=
0.12×5=
0÷3.5=
3.9÷0.39=
7÷5=
8x+6x=
6.5b-5.5b=
0.52=
0.5×2=
6x+3x-4x=
3.6a+5.4a+a=
1.5×0.6＝
3.2×0.2＝
2.3×1＝
1.8÷0.3＝
3.6÷2＝
14÷0.7＝
8.4÷4＝
2.4×5＝
8-0.55=
4.8×0.5=
1.2÷0.6=
8.5+4.7=
10÷0.25=
0.5÷0.05=
0.24÷0.4=
4.5÷0.09=
5×0.5=
0.6×0.7=
4.4×0.1=
1.3×0.5=
1.2×4=
0.8×5=
8.5×10=
2.5×0.2=
0.27÷0.3=
0.2×1.01=
1.24÷0.4=
80÷0.04=
0.6×1.2=
10÷0.25=
0.64×0.4=
0.7×1.8=
9.9÷0.01=
8.1÷0.9＝
0.65÷1.3＝
0.36÷0.4＝
3.6×2＝
4.5×0.2＝
8.65＋1.5＝
0.32÷1.6＝
7.5÷1.5＝
1.2+4.5＝
0.28×10＝
6.87－0.87＝
2.5×8＝
0.1－0.01＝
8.65×0＝
0.2×0.2×0.2＝
100×0.7＝
2.8÷0.7＝
0.6×8=
1.2×0.4=
2.5÷5=
21÷0.7=
0.2×0.9=
3.6÷0.4=
0.45÷9=
0.05×8=
2.4×5=
0.25×4=
7﹣3.58=
12.75﹣2.5=
14÷0.5=
2.7×30=
14.5﹣2.9=
10x+11x=
0÷0.479=
5a﹣a=
5×0.04=
4.8+4.08=
3.6÷0.2=
0.21×0.3=
0.4=
1.2÷4=
0.36÷12=
2b-0.5b=
10-0.72+9.28=
2.5×0.4÷2.5×0.4=
450÷90=
0.7×100=
0.8×125=
12.5×0.1=
+16=
10-9.92=
9.8÷0.01=
0.64÷1.6=
0.9×0.8＝
0.8×1.2＝
0.12×50＝
60×0.8＝
1.8×0.04＝
0.15×0.4＝
1.3×0.004＝
5.8－0.8×5＝
3.5×0.2=
10÷0.5=
6×0.25=
0.63÷0.9=
1.8×0.4=
0.99÷0.01=
1.2×4=
3.9×0.01=
0.24×0.1=
0.125×0.8=
0.27÷0.03=
0.72÷3=
500×0.2=
0.54÷0.9=
1.25×11×0.8=
4.2÷0.2=
0.39×0÷9.54=
0.66÷0.11=
0.45÷0.001＝
10÷2.5＝
4.2÷1.4＝
7.2÷4＝
2.8÷0.7＝
1.8×0.4＝
0.56÷0.8＝
2.4÷0.04＝
32×0.2=
0.25×0.8=
4÷0.4=
0.63÷0.7=
56×0.99
0.79×0.52
5.61÷7.03
632÷6.98
0.25×4=
9.1÷0.7=
0.56×100=
4.5÷0.9=
3.3×0.4=
6.4÷0.08=
0.81÷0.9 =
5.1÷1.7=
1×0.815=
15÷0.15=
4.2÷1.4=
1÷0.05=
0.3×0.2=
2.4×10=
4.2÷0.7=
3.6÷12=
7.5+0.15=
1.2×5=
9.1-0.7=
15×0.6=
0.8-0.35=
0.78÷0.3=
0.54÷0.9=
5.6+1.65=
0×4.75=
4.2÷0.42=
3.6÷0.4=
1÷0.25=
4×0.8=
0.1÷0.05=
7.2×0.3=
12-4.3=
0.45+0.55=
36÷0.01=
0.8×0.125=
0.56÷0.7=
0.36÷0.4÷9=
2.4÷4×0.3=
3.2×0.3=
0.04×0.2=
6.05×7=
1.25×8=
2.1×0.4=
0.05×0.4=
3.5×0.1＝
43÷0.1＝
200×0.04＝
12-1.2＝
1.3×0.5＝
0.42÷0.6＝
6.3÷0.7＝
0.21×0.3＝
5.69÷0.5＝
5.5÷11＝
0.32=
4.8÷0.3=
0.42÷0.6=
0.01÷0.1=
3.2×0.5=
22-19.7=
0.125×0.8=
1.7×0.03=
0.24÷3=
21.8÷2=
0.57÷3=
2.4÷4=
0.56÷8=
4.2÷7=
7÷5=
0.3÷2=
3.5×0.1＝
43÷0.1＝
200×0.04＝
12-1.2＝
1.3×0.5＝
0.42÷0.6＝
6.3÷0.7＝
0.21×0.3＝
5.69÷0.5＝
5.5÷11＝
2×0.48=
0.81÷3=
0.5×2.4=
4×0.24=
3.2÷0.4=
0.05×20=
8.2÷0.01=
2.5×4=
0.35÷7=
4÷0.2=
9.8-0.6=
80÷1000=
4.3+5=
1.25×0.8=
17×40=
11÷15=
18÷0.6=
1÷0.1=
39÷13=
3÷5=
1.8×0.4=
1.6÷8=
0.28÷0.4=
12.1÷1=
3.25÷0.01=
6.8×100=
2.2÷0.2=
0÷0.19=
0.64÷0.32=
0.7×1.2=
40×0.25=
2.9÷2.9=
0.24÷0.6=
1.8×0.3=
24.48÷24=
0.29×0.07=
2.1×0.3=
0.5×0.8=
3÷0.5=
2.1÷0.3=
0.37÷0.1=
0.25×4=
3.6÷6=
4×0.23=
3÷2=
0.64÷0.8=
7.5÷2.5=
8.8÷11=
25.25÷25=
0.16×4=
0.24÷0.6=
2.5×4×0.5=
3.3÷0.1=
2.5×7×0.4=
6.3×2.7+3.7×2.7=
3.04×0.1=
5.6÷0.8=
4.38÷0.8=
0.7×0.33=
2×1.3×0.5=
15÷0.5=
100－0.18=
1.6×0.5=
0.35×0.4＝
7.32＋2.68＝
5.01－3.83＝
0.55÷1.1＝
12÷0.8＝
0.8×1.25＝
1.08÷0.06＝
7.09÷7.09＝
34÷0.17＝
0.125÷2.5＝
×5＝
0.72×5＝
2.7×0.3＝
12.5×80＝
84÷0.4＝
4.2÷7＝
0.9÷0.3＝
24÷1.2＝
81÷0.5=
0.65÷0.01=
4.8÷0.06=
9÷5=
0.3×0.3×0.3=
0.25×7.8×4=
0.95×101=
3.5×0.2＝
10÷0.5＝
6×0.25＝
0.63÷0.9＝
1.8×0.4＝
0.99÷0.01＝
1.2×4＝
3.9×0.01＝
4-0.9＝
3.7+6.4＝
4.5÷0.9＝
9÷2＝
42＝
0.52＝
0÷234＝
42×5＝
10÷（2.5×2）＝
2.5×2×0.8＝
0.54+0.06=
0.73+0.94=
9.8－5.9=
10－0.8=
2.36×10=
8－0.7+0.3=
0.06×5=
0.9×100=
0×5.4=
4－0.17=
2.5×0.4=
4.5÷0.9=
0.28÷7=
1.5×2-2=
0.99÷0.1=
1.09+0.1=
3.5×30=
1.9×99+1.9=
0.8÷0.2=
4÷0.4=
0.3÷3=
4.9÷7=
4.4÷1.1=
7.2÷4=
1÷0.25=
3.9÷0.3=
8.01－4.9=
0.12×0.5=
3.5＋3 =
14.21÷7=
7.5÷0.25=
0.1÷0.01=
0.125×8=
0.36÷0.4=
0.63÷0.9＝
0.8×4＝
7－0.35＝
3.5÷7＝
2.7÷0.9＝
0.036÷0.012＝
8＋2.04＝
0.1÷0.05＝
1÷0.25＝
8.79×0＝
2.1÷7=
0.9＋2.3=
13×6=
1.5×6=
0.1×0.2=
3.2-0.6=
2.5×11×4=
1.02÷0.1=
1.25×0.8=
10-8.9=
0.4×0.02=
0.63÷0.9=
0.9÷0.01=
0.7+0.23=
16÷1.6=
1.8×0.1=
+7＝
21.5+9.5＝
2.5×0.4＝
2﹣0.01＝
0.75÷0.3＝
1﹣ ＝
+ ＝
3.5÷100＝
0.47÷0.1＝
12.5×1.6＝
7.65－0.5＝
0.27＋1.03＝
3－2.96＝
0.11＋7＝
0.47＋0.5＝
0.1－0.01＝
4×0.5＝
0.6×100＝
1.5×4=
0.2×0.5=
1.7×0.03=
4.8÷4=
2.7÷0.9=
60÷0.4=
53. 根据543×46=
24978，直接写出下面算式的结果。
5.43×46=
54.3×4.6=
5.43×4.6=
0.543×46=
543×0.46=
5.43×0.46=
0.0543×4.6=
5.43×0.046=
0.543×0.046=
0.9-0.45=
100×0.45=
3.6÷0.12=
6.3÷0.7=
4.8÷2.4=
1.25×0.8=
0.6+0.38=
4.2×0.4=
14-6.4=
0.5×1.1=
0.7÷0.35=
0.25×40=
2.3×5=
0.3＋0.01 =
4÷0.5 =
1.25×17×0.8=
0.32×100=
6.7－2.3 =
2.3÷0.01=
4.36×0÷9.5＝
4.5×2=
4×2.5=
2.4× 0.5=
6.95－1.95－0.7=
8.4÷4=
9.9÷0.1=
0.8 ÷2＋2 =
6.8+5.5-6.8=
0.5×200=
8.4÷4.2=
1.32-0.8=
0.5×0.1×100=
1.6÷0.08=
5.5×0.3=
0.52=
4.5-（3.5-0.7）=
6÷5＝
2.5×4＝
20×0.5＝
4.8÷1.6＝
1.5×5＝
10﹣4.5＝
0.39÷3＝
7.2÷4＝
3.25+2.5＝
3.68﹣2.99＝
60×0.3=
22×0.4=
0×2.36=
0.7×0.01=
0.5×0.06=
4.99×1=
1.05×0.2=
0.02×0.2=
4.2÷0.7=
3.6÷18=
1.12÷12=
1.2÷0.6=
9.1×0.13=
0.15×40=
÷6=
5.2÷13=
7.1÷0.71=
5.6÷0.08=
6÷1.5=
0.36÷3=
0.02×500＝
25×0.04＝
0.3×1.4＝
3.2×2－6.4＝
8.08÷8＝
5.4÷0.54＝
1－0.09＝
75÷3÷0.5＝
1÷0.125=
8÷10=
0.43+3.57=
7.25-3=
35÷3.5=
12.5×0.8=
0.22+0.88=
7.2×0.01=
1-0.56=
0×0.98=
0.76+0.4=
2.95-0.5=
0.2×0.4=
7.5÷100=
2-0.3+0.7=
9.18÷9=
10÷4=
6.9+3.1=
10. 8×100=
0.9+1.5-0.9+1.5=
68＋9＝
50－4＝
0.9×0.8＝
7.2÷9＝
63÷3＝
4.2×2＝
4×0.5＝
2.1－0.7＝
3.3÷0.3＝
4×0.25＝
1.65+0.25＝
7.7﹣1.1=
6.36﹣2.6＝
25÷5＝
5×5÷5×5
1.7+3.3×0.2
1.25×8＝
16×0.5＝
36÷0.9＝
360÷100＝
0.2×55＝
2.6÷0.2＝
2.4×6＝
3.2÷4＝
3.6÷6＝
7.8÷6＝
14÷4＝
6.6÷11＝
56.7÷7＝
8.8÷4＝
69. 根据208×75=
15600 ， 直接写出下列各题的得数。
208×7.5=
2.08×7.5=
20.8×7.5=
2080×0.75 =
1.2+4.5＝
0.28×10＝
6.87－0.87＝
2.5×8＝
0.1－0.01＝
8.65×0＝
0.2×0.2×0.2＝
100×0.7＝
2.8÷0.7＝
100÷25=
1.5×6＝
0.2×0.5＝
9.6÷4＝
3.5×10＝
2.7÷9＝
100×0.9＝
0.85﹣0.05＝
0.7+0.23＝
42×0.3＝
2a﹣a＝
3.9÷13=
3.6÷12 =
8.1÷27 =
0.04÷2=
0.88÷4 =
1.25÷5 =
4.8÷1.2=
15÷0.5=
5.6÷0.8=
0.9÷10=
0.42÷0.6=
15.9÷3=
0.77÷0.7=
3.03×100=
0.3×0.8=
0.72÷0.09=
0.22÷0.1=
7.3÷0.73=
1.3×0.5＝
2.5×6＝
1.8×0.4＝
1.6×0.5
9.1﹣2.8＝
4.6+3.7＝
3×2.8＝
1.9×0.3＝
1.25×2.3×0.8＝
2.5×5.6×4＝
10-0.98=
1.56+2.44=
2÷8=
4÷0.01=
0.5×0.8=
25×0.4=
0÷0.99=
4.5÷0.9=
3.5×0.2＝
10÷0.5＝
6×0.25＝
0.63÷0.9＝
1.8×0.4＝
0.1÷0.01＝
0.7＋0.33＝
3.9×0.01＝
1.3×99＋1.3＝
2.4÷0.2＝
3.8×0.5＝
10.5÷0.5＝
0.8×5×0.2＝
4.2÷0.07＝
0.39÷1.3＝
0.6×4÷0.6×4＝
8÷2.5÷0.4＝
78. 根据15×64=
960，直接写出下列各题的得数。
0.5×64=
15×0.64=
0.015×64=
1.4×0.2=
3÷0.5=
0.7×0.9=
5.8÷100=
0.5×32=
24÷0.3=
2.8÷0.2=
3.9÷0.01=
0.2×7×0.5=
（2.5+0.9）×0.4=
1.2×0.5=
88÷0.22=
1.1×1.1=
10-0.125×8=
3-0.9=
8.97+1.03=
3.9+3.7+6.3=
4÷0.25 =
2.4×5=
0.24÷0.4=
3×8×0.125=
7.3-6.5=
7.6+2.4=
0.25×8 =
0.56÷7=
500×0.02=
45÷4.5=
10÷0.01=
0.22+0.8=
10-2.05=
3.5×0.4=
3－0.9＋0.1=
0.7×0.5＝
3.6÷4＝
10×0.01＝
0.12÷12＝
7÷2＝
5.4－4.5＝
2×1.25＝
5×2.02＝
6.6÷0.6=
1.8×0.2=
0.48÷0.6=
3.46+2.54=
1÷0.25=
2-1.7=
0.8×10.1=
2.4×0.5=
40×1.2＝
25×0.4 ＝
6=
29÷18＝
2.4×0.5＝
3.6÷0.06＝
1÷3＝
6.8÷0.5=
4.2÷0.25=
2.1÷0.2=
1.9÷5=
6÷1.5=
6.8×2=
4.2×4=
2.1×5=
1.9×0.1=
6×0.5=
0.1－0.01＝
6.87－0.87＝
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解，6x-4x=8.4
2X=8.4
X=8.4÷2
X=4.2
答，X等于4.2
2X=8.4
X=8.4÷2
X=4.2
答，X等于4.2
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6x-4x=8.4就是8.4=(2x)然后用8.4除以2等于4.2
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原式等于2x＝8.4，则x＝8.4÷2，计算一下x＝4.2
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6x-4x=8.4
(6-4)x=8.4
2x=8.4
x=8.4/2
x=4.2
(6-4)x=8.4
2x=8.4
x=8.4/2
x=4.2
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