用乘法分配律简算:7.5×7.7+25×0.69

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/23 16:05:41
用乘法分配律简算:7.5×7.7+25×0.69用乘法分配律简算:7.5×7.7+25×0.69用乘法分配律简算:7.5×7.7+25×0.697.5×7.7+25×0.69=25×0.4×7.5+2

用乘法分配律简算:7.5×7.7+25×0.69
用乘法分配律简算:7.5×7.7+25×0.69

用乘法分配律简算:7.5×7.7+25×0.69
7.5×7.7+25×0.69
=25×0.4×7.5+25×0.69
=25×3.08+25×0.69
=25×(3.08+0.69)
=94.25