10脱试计算答案

10脱试计算答案

62×7.1+2.9,
=440.2+2.9,
=443.1；
4.2×0.25,
=（4+0.2）×0.25,
=4×0.25+0.2×0.25,
=1+0.05,
=1.05；
5.2×4.3+0.8×4.3,
=（5.2+0.8）×4.3,
=6×4.3,
=25.8．
8.5+1.5÷0.25×4,
=8.5+6×4,
=8.5+24,
=32.5．
0.25×0.8+2.5%
=0.2+2.5%,
=0.225；
32×125×2.5,
=4×8×125×2.5,
=8×125×（4×2.5）,
=1000×10,
=10000；
94÷（6.84×8.5-31.46÷0.55）,
=94÷（58.14-57.2）,
=94÷0.94,
=100．
13÷0.4÷2.5,
=13÷（0.4×2.5）,
=13÷1,
=13；
1.25×2.5×0.8,
=（1.25×0.8）×2.5,
=1×2.5,
=2.5；
1.5×101-1.5,
=1.5×（101-1）,
=1.5×100,
=150；
4.8×101,
=4.8×100+4.8×1,
=480+4.8,
=484.8．
3.25×4.7-7.8,
=15.275-7.8,
=7.475；
0.57+0.43×0.24,
=0.57+0.1032,
=0.6732．
1560÷5÷3,
=312÷3,
=104；
152×3÷2,
=456÷2,
=228；
43×12×6,
=516×6,
=3096．
200+25×33,
=200+825,
=1025；
（25+26）×48,
=51×48,
=2448．
576-（290+107）,
=576-397,
=179；
649+124-556,
=773-556,
=217．
4.82-5.2÷0.8×0.6,
=4.82-6.5×0.6,
=4.82-3.9,
=0.92．

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