一、口算。
$40÷8=$
$62÷7=$
$55÷9=$
$30÷7=$
$10÷5=$
$61÷9=$
$35÷5=$
$2×9=$
$19÷4=$
$18÷6=$
$23÷6=$
$4×8=$
$49÷7=$
$21÷6=$
$2×7=$
$40÷5=$
$32÷9=$
$54÷6=$
$42÷5=$
$4×6=$
$6×6=$
$75÷8=$
$21÷3=$
$53÷8=$
$48÷5=$
$64÷7=$
$20÷3=$
$16÷3=$
$30÷6=$
$76÷8=$

$40÷8=5$
$62÷7=8······6$
$55÷9=6······1$
$30÷7=4······2$
$10÷5=2$
$61÷9=6······7$
$35÷5=7$
$2×9=18$
$19÷4=4······3$
$18÷6=3$
$23÷6=3······5$
$4×8=32$
$49÷7=7$
$21÷6=3······3$
$2×7=14$
$40÷5=8$
$32÷9=3······5$
$54÷6=9$
$42÷5=8······2$
$4×6=24$
$6×6=36$
$75÷8=9······3$
$21÷3=7$
$53÷8=9······1$
$48÷5=9······3$
$64÷7=9······1$
$20÷3=6······2$
$16÷3=5······1$
$30÷6=5$
$76÷8=9······4$

二、给小动物排队。
1.
$6×7$ $54÷9$ $32÷8$ $72÷9$ $49÷7$ $5×9$
$(\quad\quad)＞(\quad\quad)＞(\quad\quad)＞(\quad\quad)＞(\quad\quad)＞(\quad\quad)$
2.
$4×6$ $42÷7$ $36÷4$ $5×8$ $9×7$ $21÷7$
$(\quad\quad)＜(\quad\quad)＜(\quad\quad)＜(\quad\quad)＜(\quad\quad)＜(\quad\quad)$

1. $5×9$ $6×7$
$72÷9$ $49÷7$
$54÷9$ $32÷8$
2. $21÷7$ $42÷7$
$36÷4$ $4×6$
$5×8$ $9×7$