怎样简便就怎样算
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| (1)35.6+(12.6-4.4), =35.6+8.2, =43.8; (2)90÷0.4÷2.5, =90÷(0.4×2.5), =90÷1, =90; (3)0.86×15.4-14.4×0.86, =0.86×(15.4-14.4), =0.86×1, =0.86; (4)5.4÷0.6+(2.3-0.46), =5.4÷0.6+1.84, =9+1.84, =10.84; (5)7.52×10.1, =7.52×(10+0.1), =7.52×10+7.52×0.1, =75.2+0.752, =75.952; (6)1.25×0.7×0.8, =1.25×0.8×0.7, =1×0.7, =0.7. |
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