一、口算。
26 + 16 =
24 ÷ 3 =
30 ÷ 4 =
68 ÷ 2 =
21 × 3 =
82 ÷ 2 =
77 ÷ 7 =
30 × 2 =
35 ÷ 4 =
93 ÷ 3 =
31 × 2 =
42 ÷ 9 =
22 × 4 =
6 × 9 =
72 ÷ 8 =
11 × 9 =
70 - 54 =
66 ÷ 2 =
22 × 3 =
53 - 35 =
42 ÷ 2 =
84 ÷ 4 =
13 × 3 =
55 ÷ 7 =
23 × 2 =
44 + 18 =
80 ÷ 4 =
12 × 4 =
60 ÷ 3 =
47 ÷ 8 =

$26 + 16 = 42$
$24 ÷ 3 = 8$
$30 ÷ 4 = 7······2$
$68 ÷ 2 = 34$
$21 × 3 = 63$
$82 ÷ 2 = 41$
$77 ÷ 7 = 11$
$30 × 2 = 60$
$35 ÷ 4 = 8······3$
$93 ÷ 3 = 31$
$31 × 2 = 62$
$42 ÷ 9 = 4······6$
$22 × 4 = 88$
$6 × 9 = 54$
$72 ÷ 8 = 9$
$11 × 9 = 99$
$70 - 54 = 16$
$66 ÷ 2 = 33$
$22 × 3 = 66$
$53 - 35 = 18$
$42 ÷ 2 = 21$
$84 ÷ 4 = 21$
$13 × 3 = 39$
$55 ÷ 7 = 7······6$
$23 × 2 = 46$
$44 + 18 = 62$
$80 ÷ 4 = 20$
$12 × 4 = 48$
$60 ÷ 3 = 20$
$47 ÷ 8 = 5······7$

二、连一连。