计算下面各题,能简算的要简算.①0.45+0.45÷0.9×1.8②9 5 11 -5 3 4 -2.25③25
计算下面各题,能简算的要简算.①0.45+0.45÷0.9×1.8②9511-534-2.25③25×104④0.625×4.3+58×4.7+62.5%⑤(110+16...
计算下面各题,能简算的要简算.①0.45+0.45÷0.9×1.8②9 5 11 -5 3 4 -2.25③25×104④0.625×4.3+ 5 8 ×4.7+62.5%⑤( 1 10 + 1 6 )×10×6⑥ 3 8 ×20- 3 8 ×3- 3 8 .
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①0.45+0.45÷0.9×1.8, =0.45+0.5×1.8, =0.45+0.9, =1.35; ②9
=9
=9
=1
③25×104, =25×100+25×4, =2500+100, =2600; ④0.625×4.3+
=0.625×(4.3+4.7+1), =0.625×10, =6.25; ⑤(
=
=6+10, =16; ⑥
=
=
=6. |
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