8.94×1.7+8.94×3.3的简便运算:
8.94×1.7+8.94×3.3
=8.94×(1.7+3.3) %提取公因数8.94
=8.94×5 %括号你的数相加,(1.7+3.3) =5
=(9-0.06)×5 %将8.94改写成(9-0.06)
=45-0.3 %运用乘法分配律,进行相乘计算
=44.7
8.94×1.7+8.94×3.3
=8.94x(1.7+3.3)
=8.94x5
=4.47x2x5
=4.47x10
=44.7
很高兴为你解答,望采纳。
=8.94*(1.7+3.3)
=8.94*5
=44.7
8.94×1.7+8.94×3.3
=8.94×(1.7+3.3)
=8.94×5
=44.7
8.94×(1.7+3.3)
=8.94×5
=44.7