算一算． 144.15÷15.5÷0.03 21.44÷3.2-1.8 39.22÷3.7×2.5 106.02÷9.3-1.14 6.12÷3.4÷2.5 &.
算一算．144.15÷15.5÷0.0321.44÷3.2-1.839.22÷3.7×2.5106.02÷9.3-1.146.12÷3.4÷2.59.36×9÷1.8．...
算一算． 144.15÷15.5÷0.03 21.44÷3.2-1.8 39.22÷3.7×2.5 106.02÷9.3-1.14 6.12÷3.4÷2.5 9.36×9÷1.8．
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①144.15÷15.5÷0.03
=9.3÷0.03
=310；
②21.44÷3.2-1.8
=6.7-1.8
=4.9；
③39.22÷3.7×2.5
=10.6×2.5
=26.5；
④106.02÷9.3-1.14
=11.4-1.14
=10.26；
⑤6.12÷3.4÷2.5
=1.8÷2.5
=0.72；
⑥9.36×9÷1.8
=84.24÷1.8
=46.8．
=9.3÷0.03
=310；
②21.44÷3.2-1.8
=6.7-1.8
=4.9；
③39.22÷3.7×2.5
=10.6×2.5
=26.5；
④106.02÷9.3-1.14
=11.4-1.14
=10.26；
⑤6.12÷3.4÷2.5
=1.8÷2.5
=0.72；
⑥9.36×9÷1.8
=84.24÷1.8
=46.8．
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