数学题求解,急需
能简便就简便2.5×4÷2.5×44.02-3.5+5.9810.6-7.91+3.4-2.0917.63-(7.63+2.83)0.82×2.7+0.82×7.3---...
能简便就简便
2.5×4÷2.5×4
4.02-3.5+5.98
10.6-7.91+3.4-2.09
17.63-(7.63+2.83)
0.82×2.7+0.82×7.3
-------------------------------------------------
10.75×3.6-0.75×3.6
3.5+3.6÷4×0.08
0.6×(6.4-1.6)÷0.15
(3.6-1.2÷0.8)÷0.6
3.91+0.46×0.5 展开
2.5×4÷2.5×4
4.02-3.5+5.98
10.6-7.91+3.4-2.09
17.63-(7.63+2.83)
0.82×2.7+0.82×7.3
-------------------------------------------------
10.75×3.6-0.75×3.6
3.5+3.6÷4×0.08
0.6×(6.4-1.6)÷0.15
(3.6-1.2÷0.8)÷0.6
3.91+0.46×0.5 展开
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1 解:原式=2.5÷2.5×4×4=16
2解:原式=4.02+5.98-3.5=10-3.5=6.5
3解:原式=10.6+3.4-(7.91+2.09)=14-10=4
4解:原式=0.82×(2.7+7.3)=0.82×10=8.2
5解:原式=(10.75-0.75)×3.6=10×3.6=36
6解:原式=3.5+0.9×0.08=3.5+0.072=3.572
7解:原式=0.6×4.8÷0.15=0.6÷0.15×4.8=4×4.8=19.2
8解:原式=(3.6-1.5)÷0.6=2.1÷0.6=3.5
9解:原式=3.91+0.23=4.14
【注:前五题能简便,后五题直接计算就行】
2解:原式=4.02+5.98-3.5=10-3.5=6.5
3解:原式=10.6+3.4-(7.91+2.09)=14-10=4
4解:原式=0.82×(2.7+7.3)=0.82×10=8.2
5解:原式=(10.75-0.75)×3.6=10×3.6=36
6解:原式=3.5+0.9×0.08=3.5+0.072=3.572
7解:原式=0.6×4.8÷0.15=0.6÷0.15×4.8=4×4.8=19.2
8解:原式=(3.6-1.5)÷0.6=2.1÷0.6=3.5
9解:原式=3.91+0.23=4.14
【注:前五题能简便,后五题直接计算就行】
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1 =2.5*4/2.5/4=16
2 =4.02+5.98-3.5=6.5
3 =10.6+3.4-(7.91+2.09)
4 =17.63-7.63-2.83=10-2.83=7.17
5 =0.82*(2.7+7.3)=0.82*10=8.2
6 =(10.75-0.75)*3.6=10*3.6=36
2 =4.02+5.98-3.5=6.5
3 =10.6+3.4-(7.91+2.09)
4 =17.63-7.63-2.83=10-2.83=7.17
5 =0.82*(2.7+7.3)=0.82*10=8.2
6 =(10.75-0.75)*3.6=10*3.6=36
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2.5X4+2.5x4
=10+10
=20
4.02-3.5+5.98
=4.02+5.98-3.5
=10-3.5
=6.5
10.67-7.91+3.4-2.09
=10.67+3.4-(7.91+2.09)
=14.07-10
=4.07
17.63-(7.63+2.83)
=17.63-7.63-2.83
=7.17
0.82x2.7+0.82x7.3
=0.82x(2.7+7.3)
=0.82x10
=8.2
10.75x3.6-0.75x3.6
= 3.6x(10.75-0.75)
=36
3.5+3.6÷4×0.08
=3.5+0.9x0.08
=3.5+0.072
3.572
0.6×(6.4-1.6)÷0.15
=3/5x24/5x3/20
=54/75
(3.6-1.2÷0.8)÷0.6
=(3.6-1.5)/0.6
=2.1/0.6
=3.5
3.91+0.46×0.5
=3.91+0.23
=4.14
=10+10
=20
4.02-3.5+5.98
=4.02+5.98-3.5
=10-3.5
=6.5
10.67-7.91+3.4-2.09
=10.67+3.4-(7.91+2.09)
=14.07-10
=4.07
17.63-(7.63+2.83)
=17.63-7.63-2.83
=7.17
0.82x2.7+0.82x7.3
=0.82x(2.7+7.3)
=0.82x10
=8.2
10.75x3.6-0.75x3.6
= 3.6x(10.75-0.75)
=36
3.5+3.6÷4×0.08
=3.5+0.9x0.08
=3.5+0.072
3.572
0.6×(6.4-1.6)÷0.15
=3/5x24/5x3/20
=54/75
(3.6-1.2÷0.8)÷0.6
=(3.6-1.5)/0.6
=2.1/0.6
=3.5
3.91+0.46×0.5
=3.91+0.23
=4.14
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通过改变计算顺序达到简化的目的。
1、2.5÷2.5×4×4=16
2、4.02+5.98-3.5=10-3.5=6.5
3、10.6+3.4-(7.91+2.09)=14-10=4
4、17.63-7.63-2.83=10-2.83=7.17
5、0.82×(2.7+7.3)=0.82×10=8.2
6、3.6×(10.75-0.75)=3.6×10=36
1、2.5÷2.5×4×4=16
2、4.02+5.98-3.5=10-3.5=6.5
3、10.6+3.4-(7.91+2.09)=14-10=4
4、17.63-7.63-2.83=10-2.83=7.17
5、0.82×(2.7+7.3)=0.82×10=8.2
6、3.6×(10.75-0.75)=3.6×10=36
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1)2.5÷2.5×4×4=16
2)4.02+5.98-3.5=10-3.5=6.5
3)10.6+3.4-7.91-2.09=11-10=1
4)17.63-7.63-2.83=7.17
5)0.82*(2.7+7.3)=0.82*10=8.2
2)4.02+5.98-3.5=10-3.5=6.5
3)10.6+3.4-7.91-2.09=11-10=1
4)17.63-7.63-2.83=7.17
5)0.82*(2.7+7.3)=0.82*10=8.2
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