作业帮用乘法分配律简算：8.88×9+777×0.04
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/03 21:19:50
用乘法分配律简算：8.88×9+777×0.04
用乘法分配律简算：8.88×9+777×0.04
用乘法分配律简算：8.88×9+777×0.04
8.88×9+777×0.04
=1.11x8x9+1.11x700x0.04
=1.11x72+1.11 x28
=1.11x(72+28)
=1.11x100
=111
8.88×9+777×0.04
=888×0.09+777×0.04
=111×8×0.09+111×7×0.04
=111×(8×0.09+7×0.04)
=111×(0.72+7×0.28)
=111×1
=111
原式=1.11x8x9＋1.11x4x7
＝1.11x72＋1.11x28
＝1.11x（72＋28）
＝1.11x100
＝111