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脱式计算,能简算的要简算:4.67%(2.98+0.67); ...

4.67-(2.98+0.67)=4.67-0.67-2.98 =4-3+0.02 =1.02

. 3.6+9.7+6.4 =(3.6+6.4)+9.7 =19.7 4.67-(2.98+0.67) =(4.67-0.67)-3+0.02 =1+0.02 =1.02 5分之2除(5分之4减4分之3) =(4/5-3/4)÷2/5 =4/5×5/2-3/4×5/2 =2-15/8 =1/8 4分之1乘6分之5加6分之1乘4分之1 =1/4×5/6+1/6×1/4 =1/4×(5/6+1/6) =...

4.67-(2.98+0.67) =4.67-0.67-2.98 =4-2.98 =4-(3-0.02) =4-3+0.02 =1.02 1110÷(56×(7分之3-8分之3)) =1110÷(56×3/7-56×3/8) =1110÷(24-21) =1110÷3 =370 9分之8×(7分之3÷(3分之2+7分之1)) =8/9×(3/7×21/17) =8/9×9/17 =8/17 ...

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