四、在〇里填“>”“<”或“=”。
11 〇 42 - 29 5×9 〇 45 28 + 14 〇 16 + 26
52 〇 33 + 19 63÷7 〇 8 50 - 22 〇 7×4
70 〇 9×8 27÷3 〇 9 34 + 18 〇 24 + 28
13 〇 50 - 27 63 - 28 〇 25 52 - 22 〇 50 - 21
80 〇 52 + 18 35 + 36 〇 70 33 + 29 〇 87 - 25
11 〇 42 - 29 5×9 〇 45 28 + 14 〇 16 + 26
52 〇 33 + 19 63÷7 〇 8 50 - 22 〇 7×4
70 〇 9×8 27÷3 〇 9 34 + 18 〇 24 + 28
13 〇 50 - 27 63 - 28 〇 25 52 - 22 〇 50 - 21
80 〇 52 + 18 35 + 36 〇 70 33 + 29 〇 87 - 25
答案
< = =
= > =
< = =
< > >
> > =
= > =
< = =
< > >
> > =
五、在〇里填“+”“-”“×”或“÷”。
7 〇 7 = 1 6 〇 6 = 4 〇 3 5 〇 7 = 18 〇 17
32 〇 4 = 8 5 〇 5 = 23 〇 2 4 〇 2 = 40 〇 5
6 〇 2 = 3 18 〇 6 = 6 〇 3 8 〇 4 = 4 〇 2
20 〇 5 = 15 3 〇 5 = 16 〇 2 16 〇 4 = 12 〇 3
35 〇 5 = 40 28 〇 7 = 2 〇 2 40 〇 8 = 10 〇 2
7 〇 7 = 1 6 〇 6 = 4 〇 3 5 〇 7 = 18 〇 17
32 〇 4 = 8 5 〇 5 = 23 〇 2 4 〇 2 = 40 〇 5
6 〇 2 = 3 18 〇 6 = 6 〇 3 8 〇 4 = 4 〇 2
20 〇 5 = 15 3 〇 5 = 16 〇 2 16 〇 4 = 12 〇 3
35 〇 5 = 40 28 〇 7 = 2 〇 2 40 〇 8 = 10 〇 2
答案
$7 ÷ 7 = 1$
$6 + 6 = 4 × 3$
$5 × 7 = 18 + 17$
$32 ÷ 4 = 8$
$5 × 5 = 23 + 2$
$4 × 2 = 40 ÷ 5$
$6 ÷ 2 = 3$
$18 ÷ 6 = 6 - 3$
$8 ÷ 4 = 4 ÷ 2$
$20 - 5 = 15$
$3 + 5 = 16 ÷ 2$
$16 ÷ 4 = 12 ÷ 3$
$35 + 5 = 40$
$28 ÷ 7 = 2 × 2$
$40 ÷ 8 = 10 ÷ 2$
$6 + 6 = 4 × 3$
$5 × 7 = 18 + 17$
$32 ÷ 4 = 8$
$5 × 5 = 23 + 2$
$4 × 2 = 40 ÷ 5$
$6 ÷ 2 = 3$
$18 ÷ 6 = 6 - 3$
$8 ÷ 4 = 4 ÷ 2$
$20 - 5 = 15$
$3 + 5 = 16 ÷ 2$
$16 ÷ 4 = 12 ÷ 3$
$35 + 5 = 40$
$28 ÷ 7 = 2 × 2$
$40 ÷ 8 = 10 ÷ 2$
六、找规律,填一填。

答案
1. 3 45 8
2. 5 6 20
2. 5 6 20
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