99×28+72用简便运算
99×28+72用简便运算
99×28+72×99
=99×(28+72)
=99×100
=9900
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96×28+72×28简便运算
96×28+72×28
=28×(96+72)
=(30-2)×168
=5040-336
4704
6乘以28+72简便运算
6×28+72
=6×28+6×12
=6×(28+12)
=6×40
=240
28×27加28+72乘以28的简便运算
28x27+28+72x28
=28x(27+1+72)
=28x100
=2800
99*28*28用简便运算怎么算
=(100-1)×28²
=100×28²-1×28²
=10²×28²-28²
=280²-28²
=(280+28)×(280-28)
=308×252
=(300+8)×(250+2)
=300×250+300×2+8×250+8×2
=75000+600+2000+16
=75600+2016
=77616
72×99×72的简便运算,快
72×99+72
=72×(99+1)
=72×100
=7200
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请点右上角“采纳答案”。
72+99×72的简便运算
作业小天使找到答案:
72+99×72
= 72×100
= 7200
58×27、72×99简便运算
58x27
=60x27-2x27
=1620-54
=1566
72x99
=72x100-72
=7200-72
=7128
45×28加72简便运算
45×28+72
=45×(30-2) +72
=1350 -90+72
=1350 -18
=1332