运用简便方法计算更简单.
234-34-66=______ 528-53-47=______ 435-(135+189)=______
248-75-25=______ 627-98=______ 498+86=______
278-102=______ 657+99=______ 127+44+73=______.
运用简便方法计算更简单.234-34-66=______ 528-53-47=______ 435-(135+189)=______248-7...
答案:2 悬赏:0
解决时间 2021-03-15 13:38
- 提问者网友:斩断情丝
- 2021-03-14 14:06
最佳答案
- 二级知识专家网友:懂得ㄋ、沉默
- 2021-03-14 14:42
234-34-66
=234-(34+66)
=234-100
=134
528-53-47
=528-(53+47)
=528-100
=428
435-(135+189)
=435-135-189
=300-189
=111
248-75-25
=248-(75+25)
=248-100
=148
627-98
=627-(100-2)
=627-100+2
=527+2
=529
498+86
=598+2+84
=600+84
=684
278-102
=278-(100+2)
=278-100-2
=178-2
=176
657+99
=657+(100-1)
=657+100-1
=756
127+44+73
=(127+73)+44
=244
故答案为:134,428,111,148,529,584,176,756,244.
=234-(34+66)
=234-100
=134
528-53-47
=528-(53+47)
=528-100
=428
435-(135+189)
=435-135-189
=300-189
=111
248-75-25
=248-(75+25)
=248-100
=148
627-98
=627-(100-2)
=627-100+2
=527+2
=529
498+86
=598+2+84
=600+84
=684
278-102
=278-(100+2)
=278-100-2
=178-2
=176
657+99
=657+(100-1)
=657+100-1
=756
127+44+73
=(127+73)+44
=244
故答案为:134,428,111,148,529,584,176,756,244.
全部回答
- 1楼网友:晚安听书人
- 2021-03-14 16:11
435-(135+189)
=435-135-189
=300-189
=
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