三年级下册5逭脱式计算
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25+65+98
=90+98
=188
100-100÷25
=100-4
=96
250÷50+12Ã4
=5+48
=53
1.25Ã(8+10)
=1.25Ã8+1.25Ã10
=10+12.5
=22.5
9123-(123+8.8)
=9123-123-8.8
=9000-8.8
=8991.2
25+65+98
=90+98
=188
100-100÷25
=100-4
=96
250÷50+12Ã4
=5+48
=53
1.25Ã(8+10)
=1.25Ã8+1.25Ã10
=10+12.5
=22.5
9123-(123+8.8)
=9123-123-8.8
=9000-8.8
=8991.2
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