1.2×12.3等于多少

2025-12-17 20:49:55
推荐回答(3个)
回答1:

1.2×12.3=14.76

回答2:

1.2X12.3=1.2X1.2X10+1.2X0.3=14.4+0.36=14.76

回答3:

1.2x12.3
=12.3x(1+0.2)(乘法分配律)
=12.3x1+12.3x0.2
=12.3+2.46
=14.76