问题 解答题
心算
60÷3=______1.4-0.8=______300÷6=______140÷2=______
46+38=______240÷6=______1800÷9=______4200÷7=______
46÷2=______330-70=______125×8=______72÷9=______
606÷3=______150÷5=______630÷9=______300-300÷6=______
16×20=______4.1+0.8=______50×16=______13×3=______
14×20=______0÷11=______20×60=______19×20=______
86-68=______30×12=______20×40=______330-70=______
80×9=______11×60=______12×20=______18×40=______
33×30=______9-4.8=______3.6-1.8=______6.7+2.5=______
24÷4=______80-6=______60÷4=______4+28=______
25+75=______0.6+1.5=______15×50=______141÷3=______
91÷7=______3×4×5=______137-67=______380×10=______
50×50=______26÷2=______6.2+3.9=______783÷6=______
804÷2=______7×0=______780-70=______2407+3=______
707÷7=______760-250=______8.4-7.5=______147÷7=______.
答案

60÷3=201.4-0.8=0.6300÷6=50140÷2=70
46+38=84240÷6=401800÷9=2004200÷7=600
46÷2=23330-70=260125×8=100072÷9=8
606÷3=202150÷5=30630÷9=70300-300÷6=250
16×20=3204.1+0.8=4.950×16=80013×3=39
14×20=2800÷11=020×60=120019×20=380
86-68=1830×12=36020×40=800330-70=260
80×9=72011×60=66012×20=24018×40=720
33×30=9909-4.8=4.23.6-1.8=1.86.7+2.5=9.2
24÷4=680-6=7460÷4=154+28=32
25+75=1000.6+1.5=2.115×50=750141÷3=47
91÷7=133×4×5=60137-67=70380×10=3800
50×50=250026÷2=136.2+3.9=10.1783÷6=130.5
804÷2=4027×0=0780-70=7102407+3=2410
707÷7=101760-250=5108.4-7.5=0.9147÷7=21.

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