简便计算(要过程)0.8×7.7+3.3×0.8-0.8= 32.6×51.4+674×5.14= 19.9×0.55= 8.25×4.36-82.5×0.036=
简便计算(要过程)急急急急急急急跪求0.8×7.7+3.3×0.8-0.8=32.6×51.4+674×5.14=19.9×0.55=8.25×4.36-82.5×0.0...
简便计算(要过程)急急急急急急急 跪求 0.8×7.7+3.3×0.8-0.8= 32.6×51.4+674×5.14= 19.9×0.55= 8.25×4.36-82.5×0.036=
展开
4个回答
展开全部
0.8×7.7+3.3×0.8-0.8
=0.8×﹙7.7+3.3-1﹚
=0.8×10
=8
32.6×51.4+674×5.14
=326×5.14+674×5.14
=﹙326+674﹚×5.14
=1000×5.14
=5140
19.9×0.55
=﹙20-0.1﹚×0.55
=20×0.55-0.1×0.55
=11-0.55
=10.45
8.25×4.36-82.5×0.036
=8.25×4.36-8.25×0.36
=8.25×﹙4.36-0.36﹚﹚
=8.25×4
=33
(这几题主要运用了乘法分配律进行简便计算。)
=0.8×﹙7.7+3.3-1﹚
=0.8×10
=8
32.6×51.4+674×5.14
=326×5.14+674×5.14
=﹙326+674﹚×5.14
=1000×5.14
=5140
19.9×0.55
=﹙20-0.1﹚×0.55
=20×0.55-0.1×0.55
=11-0.55
=10.45
8.25×4.36-82.5×0.036
=8.25×4.36-8.25×0.36
=8.25×﹙4.36-0.36﹚﹚
=8.25×4
=33
(这几题主要运用了乘法分配律进行简便计算。)
展开全部
一,原式=0.8X(7.7+3.3-1)
=0.8X10
=8
二 原式=﹙326+674﹚×5.14
=1000×5.14
=5140
三 原式=(20-0.1)X0.55
=20×0.55-0.1×0.55
=11-0.55
=10.45
四 原式=8.25X4.36-8.25X0.36
=8.25*(4.36-0.36)
=33
=0.8X10
=8
二 原式=﹙326+674﹚×5.14
=1000×5.14
=5140
三 原式=(20-0.1)X0.55
=20×0.55-0.1×0.55
=11-0.55
=10.45
四 原式=8.25X4.36-8.25X0.36
=8.25*(4.36-0.36)
=33
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
0.8×7.7+3.3×0.8-0.8
=0.8×﹙7.7+3.3-1﹚
=0.8×10
=8
32.6×51.4+674×5.14
=326×5.14+674×5.14
=﹙326+674﹚×5.14
=1000×5.14
=5140
19.9×0.55
=﹙20-0.1﹚×0.55
=20×0.55-0.1×0.55
=11-0.55
=10.45
8.25×4.36-82.5×0.036
=8.25×4.36-8.25×0.36
=8.25×﹙4.36-0.36﹚﹚
=8.25×4
=33
=0.8×﹙7.7+3.3-1﹚
=0.8×10
=8
32.6×51.4+674×5.14
=326×5.14+674×5.14
=﹙326+674﹚×5.14
=1000×5.14
=5140
19.9×0.55
=﹙20-0.1﹚×0.55
=20×0.55-0.1×0.55
=11-0.55
=10.45
8.25×4.36-82.5×0.036
=8.25×4.36-8.25×0.36
=8.25×﹙4.36-0.36﹚﹚
=8.25×4
=33
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
0.8×7.7+3.3×0.8-0.8
=0.8×﹙7.7+3.3-1﹚
=0.8×10
=8
32.6×51.4+674×5.14
=326×5.14+674×5.14
=﹙326+674﹚×5.14
=1000×5.14
=5140
19.9×0.55
=﹙20-0.1﹚×0.55
=20×0.55-0.1×0.55
=11-0.55
=10.45
8.25×4.36-82.5×0.036
=8.25×4.36-8.25×0.36
=8.25×﹙4.36-0.36﹚﹚
=8.25×4
=33
就OK了
=0.8×﹙7.7+3.3-1﹚
=0.8×10
=8
32.6×51.4+674×5.14
=326×5.14+674×5.14
=﹙326+674﹚×5.14
=1000×5.14
=5140
19.9×0.55
=﹙20-0.1﹚×0.55
=20×0.55-0.1×0.55
=11-0.55
=10.45
8.25×4.36-82.5×0.036
=8.25×4.36-8.25×0.36
=8.25×﹙4.36-0.36﹚﹚
=8.25×4
=33
就OK了
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询