一、口算。
$52 - 25 =$
$6×4 =$
$36÷4 =$
$44 + 26 =$
$22×3 =$
$46÷2 =$
$14×2 =$
$66÷3 =$
$30÷4 =$
$50 - 13 =$
$7×3 =$
$63÷7 =$
$31×3 =$
$84÷4 =$
$41÷6 =$
$37 + 28 =$
$42×2 =$
$88÷8 =$
$30×3 =$
$80÷4 =$
$60÷9 =$
$62÷2 =$
$8×8 =$
$21×4 =$
$60 - 41 =$
$26÷2 =$
$52÷6 =$
$3×11 =$
$69÷3 =$
$68÷2 =$

一、27 24 9
70 66 23
37 21 9
93 21 6……5
65 84 11
90 20 6……6
31 64 84
19 13 8……4
33 23 34

二、在$◯$里填“＞”“＜”或“=”。
$80 - 22◯64$
$4×21◯44×2$
$25 + 37◯7×9$
$62÷2◯30$
$96 - 48◯4×12$
$4×11◯12×3$
$36◯66÷2$
$14×2◯64 - 36$
$46÷2◯69÷3$
$88÷4◯22$
$8×10◯20×4$
$3×23◯8×9$
$3×13◯40$
$55÷5◯66÷6$
$42÷2◯3×8$

二、＜ ＜ ＜
＞ = ＞
＞ = =
= = ＜
＜ = ＜