1.2.7.7四个数用加减乘除算24
问题描述:
1.2.7.7四个数用加减乘除算24
答
1:(7 × 7 - 1) ÷ 2
2:((7 × 7) - 1) ÷ 2
1.2.7.7四个数用加减乘除算24
1:(7 × 7 - 1) ÷ 2
2:((7 × 7) - 1) ÷ 2