脱式计算:能简算的要简算 100-36.6-63.4 0.25×13.7×0.4 32.7×28+7.3×28 1.83+85+98.17+15

2024-11-28 03:43:20
推荐回答(1个)
回答(1):


(1)100-36.6-63.4
=100-(36.6+63.4)
=100-100
=0

(2)芹森含0.25×13.7×0.4
=0.25×0.4×13.7
=0.1×13.7
=1.37

(3)32.7×28+7.3×28
=(32.7+7.3)春喊×28
=40×28
=1120

(4)1.83+85+98.17+15
=(1.83+98.17)+(85+15)
=100+100
=200

(5)0.98×105
=0.98×(100+5)
=0.98×100+0.98×5
=98+4.9
=102.9

(6)嫌笑6.15×9.4-42
=57.81-42
=15.81