4.02×9.8+4.02×20%简便计算7.2÷(5-0.75+0.25)简便计算

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4.02×9.8+4.02×20%简便计算7.2÷(5-0.75+0.25)简便计算
4.02×9.8+4.02×20%简便计算
7.2÷(5-0.75+0.25)简便计算

4.02×9.8+4.02×20%简便计算7.2÷(5-0.75+0.25)简便计算
4.02×9.8+4.02×20%
=4.02×9.8+4.02×0.2
=4.02x(9.8+0.2)
=4.02x10
=40.2
7.2÷(5-0.75+0.25)
=7.2÷4.5
=(8x0.9)÷(5x0.9)
=8÷5
=1.6

4.02乘以(9.8+20%)

4.02×9.8+4.02×20%
=4.02X(9.8+20%)
=4.02X10
=40.2
7.2÷(5-0.75+0.25)
=7.2÷4.5
=(8x0.9)÷(5x0.9)
=8÷5
=1.6

4.02×9.8+4.02×20%
=4.02×(9.8+0.2)
=4.02×10
=40.2
7.2÷(5-0.75+0.25)
=7.2÷【5-(0.75-0.25)】
=7.2÷(5-0.5)
=7.2÷4.5
=1.6