Question

小学数学题。求解

Answer 1

确定是7/18？应该是5/18就好用乘法分配律进行简便计算了，将5/18和3又3/5转换为小数3.6：
原式=4.85×3.6-3.6×1+6.15×3.6
=（4.85-1+6.15）×3.6
=10×3.6
=36

Answer 2

4.85÷7×18-3.6+6.15×3.6

追问

4.85÷7/18-3.6+6.15×3×3/5

追答

3又3/5是3+3/5=3.6

4.85÷7/18=4.85×18/7

把小数变成分数，再计算

Answer 3

等下