脱式计算,能简便的要简便. 1.25×9.76×80 3.2×2.5 23.6×
脱式计算,能简便的要简便.1.25×9.76×803.2×2.523.6×99+23.636.7+63.3×2.454.3÷4÷2.50.75×18÷0.15....
脱式计算,能简便的要简便. 1.25×9.76×80 3.2×2.5 23.6×99+23.6 36.7+63.3×2.4 54.3÷4÷2.5 0.75×18÷0.15.
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(1)1.25×9.76×80, =1.25×80×9.76, =100×9.76, =976; (2)3.2×2.5, =0.8×4×2.5, =0.8×(4×2.5), =0.8×10, =8; (3)23.6×99+23.6, =23.6×(99+1), =23.6×100, =2360; (4)36.7+63.3×2.4, =36.7+151.92, =188.62; (5)54.3÷4÷2.5, =54.3÷(4×2.5), =54.3÷10, =5.43; (6)0.75×18÷0.15, =0.75÷0.15×18, =5×18, =90. |
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