Question

2.5乘0.6减1.8乘0.5的简便运算

Answer 1

2.5×0.6+1.8×0.5
=2.5×3/5+1.8×1/2
=1.5+0.9
=2.4

Answer 2

2.5×0.6+1.8×0.5
=2.5×3/5+1.8×1/2
=1.5+0.9
=2.4

Answer 3

这个直接算也不难啊

Answer 4

2.5×0.6-1.8×0.5=5×0.5×0.6-5×0.1×1.8=5×(0.5×0.6-0.1×1.8)=5×(0.3-0.18)=5×0.12=0.6

Answer 5

2.5x0.5-1.8x0.5
=0.125-0.9
=0.035