怎样简便就怎样算44×25 591+482+118 ...
答案:1 悬赏:10 手机版
解决时间 2021-03-17 03:29
- 提问者网友:不爱我么
- 2021-03-16 19:25
怎样简便就怎样算44×25 591+482+118 ...
最佳答案
- 五星知识达人网友:封刀令
- 2021-03-16 19:39
①44×25
=(40+4)×25
=40×25+4×25
=1000+100
=1100
②591+482+118
=591+(482+118)
=591+600
=1191
③99×126
=(100-1)×126
=12600-126
=12474
④125×15×8
=(125×8)×15
=1000×15
=15000
⑤473+79-73
=473-73+79
=400+79
=479
⑥67×101-67
=67×(101-1)
=67×100
=6700
⑦98.2-37.9-10.1
=98.2-(37.9+10.1)
=98.2-48
=50.2
⑧4600÷25÷4
=4600÷(25×4)
=4600×100
=46
⑨136×101-136
=136×(101-1)
=136×100
=13600
33×99+33
=33×(99+1)
=33×100
=3300
=(40+4)×25
=40×25+4×25
=1000+100
=1100
②591+482+118
=591+(482+118)
=591+600
=1191
③99×126
=(100-1)×126
=12600-126
=12474
④125×15×8
=(125×8)×15
=1000×15
=15000
⑤473+79-73
=473-73+79
=400+79
=479
⑥67×101-67
=67×(101-1)
=67×100
=6700
⑦98.2-37.9-10.1
=98.2-(37.9+10.1)
=98.2-48
=50.2
⑧4600÷25÷4
=4600÷(25×4)
=4600×100
=46
⑨136×101-136
=136×(101-1)
=136×100
=13600
33×99+33
=33×(99+1)
=33×100
=3300
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