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=______. |
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