Question

0.25×3.3+0.7×0.25口算怎么算

0.25×3.3+0.7×0.25口算怎么算

Answer 1

提取公因子0.25，算3.3+0.7=4，再用4*0.25=1

Answer 2

先把0.25提出来，算3.3+0.7
0.25×3.3+0.7×0.25
=（3.3+0.7）*0.25
=4*0.25
=1

Answer 3

0.25×3.3+0.7×0.25
=0.25x（3.3+0.7）
=0.25x4
=1/4 x 4
=1

Answer 4

0.25×3.3+0.7×0.25
=0.25×3.3+0.25×0.7
=0.25×(3.3+0.7)
=0.25×4
=1

Answer 5

0.25×3.3+0.7×0.25
=0.25x(3.3+0.7)
=0.25x4
=1