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请各位老师解答
1个回答
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(5)
65×99+65+16×125
=65×(99+1)+2×8×125
=65×100+2×(8×125)
=6500+2×1000
=6500+2000
=8500
(6)
4826÷254×100
=19×100
=1900
(7)
(653-13)÷16
=640÷16
=40
(8)
65×9+22
=585+22
=607(个)
65×99+65+16×125
=65×(99+1)+2×8×125
=65×100+2×(8×125)
=6500+2×1000
=6500+2000
=8500
(6)
4826÷254×100
=19×100
=1900
(7)
(653-13)÷16
=640÷16
=40
(8)
65×9+22
=585+22
=607(个)
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