来自罗晓春的问题
2.2×0.36+0.783×.6递等式搞错了,是2.2×0.36+0.78×3.6
2.2×0.36+0.783×.6递等式
搞错了,是2.2×0.36+0.78×3.6
1回答
2020-02-27 19:09
2.2×0.36+0.783×.6递等式搞错了,是2.2×0.36+0.78×3.6
2.2×0.36+0.783×.6递等式
搞错了,是2.2×0.36+0.78×3.6
2.2×0.36+0.78×3.6
=2.2*3.6+7.8*3.6
=(2.2+7.8)*3.6
=10*3.6
=36
扩大缩小后再用提公因式法...