一、口算。
$46÷2=$
$95-48=$
$72×7=$
$46+57=$
$25×5=$
$0÷64=$
$35×4=$
$96÷6=$
$77×4=$
$500÷5=$
$50×40=$
$11×60=$
$325×2=$
$386÷2=$
$176÷8=$
$600÷5=$
$38×20=$
$24×70=$
$\frac {3}{8}+\frac {1}{8}=$
$\frac {3}{5}+\frac {1}{5}=$
$\frac {1}{6}+\frac {2}{6}=$
$\frac {8}{9}-\frac {3}{9}=$
$\frac {3}{7}-\frac {1}{7}=$
$\frac {5}{8}-\frac {2}{8}=$
$46÷2=$
$95-48=$
$72×7=$
$46+57=$
$25×5=$
$0÷64=$
$35×4=$
$96÷6=$
$77×4=$
$500÷5=$
$50×40=$
$11×60=$
$325×2=$
$386÷2=$
$176÷8=$
$600÷5=$
$38×20=$
$24×70=$
$\frac {3}{8}+\frac {1}{8}=$
$\frac {3}{5}+\frac {1}{5}=$
$\frac {1}{6}+\frac {2}{6}=$
$\frac {8}{9}-\frac {3}{9}=$
$\frac {3}{7}-\frac {1}{7}=$
$\frac {5}{8}-\frac {2}{8}=$
答案
一、23 47 504
103 125 0
140 16 308
100 2000 660
650 193 22
120 760 1680
$\frac{4}{8} \frac{4}{5} \frac{3}{6}$
$\frac{5}{9} \frac{2}{7} \frac{3}{8}$
103 125 0
140 16 308
100 2000 660
650 193 22
120 760 1680
$\frac{4}{8} \frac{4}{5} \frac{3}{6}$
$\frac{5}{9} \frac{2}{7} \frac{3}{8}$
二、计算下面各题。
$3×5×26$
$72+300÷4$
$129+(462-226)$
$45×40-653$
$(560+45)÷5$
$(141-65)×25$
$3×5×26$
$72+300÷4$
$129+(462-226)$
$45×40-653$
$(560+45)÷5$
$(141-65)×25$
答案
二、390 147 365
1147 121 1900
1147 121 1900
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