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1. 直接写出得数。
37 + 28 = 35 ÷ 5 = 400 - 300 = 90 - 15 + 20 =
75 - 32 = 6 × 8 = 590 - 90 = 6 × 6 ÷ 9 =
27 + 44 = 54 - 29 = 27 ÷ 3 = 5 × 5 ÷ 5 =
65 - 18 = 27 + 37 = 3 × 5 = 4 × 9 + 26 =
4 × 6 = 21 - 14 = 69 + 16 = 68 - 18 + 28 =
12 ÷ 2 = 48 + 37 = 34 + 28 = 66 + 19 - 24 =
44 + 36 = 380 - 80 = 52 + 39 = 74 + 18 - 17 =
88 - 69 = 74 - 45 = 870 - 70 = 21 + 21 + 21 =
37 + 28 = 35 ÷ 5 = 400 - 300 = 90 - 15 + 20 =
75 - 32 = 6 × 8 = 590 - 90 = 6 × 6 ÷ 9 =
27 + 44 = 54 - 29 = 27 ÷ 3 = 5 × 5 ÷ 5 =
65 - 18 = 27 + 37 = 3 × 5 = 4 × 9 + 26 =
4 × 6 = 21 - 14 = 69 + 16 = 68 - 18 + 28 =
12 ÷ 2 = 48 + 37 = 34 + 28 = 66 + 19 - 24 =
44 + 36 = 380 - 80 = 52 + 39 = 74 + 18 - 17 =
88 - 69 = 74 - 45 = 870 - 70 = 21 + 21 + 21 =
答案
1. 65 7 100 95
43 48 500 4
71 25 9 5
47 64 15 62
24 7 85 78
6 85 62 61
43 48 500 4
71 25 9 5
47 64 15 62
24 7 85 78
6 85 62 61
2. 在〇里填“＞”“＜”或“=”。
69 〇 30 + 26 47 + 38 〇 95 99 - 6 〇 94
86 〇 98 - 34 65 〇 90 - 27 54 - 30 〇 24
48 - 25 〇 78 - 23 35 + 42 〇 96 - 29 47 - 29 〇 36 - 18
27 + 25 〇 66 45 + 38 - 27 〇 45 - 39 + 27
58 + 20 - 9 〇 51 17 + 17 + 17 〇 83 - 8 - 22
72 - 34 + 25 〇 63 90 + 5 - 47 〇 90 - 47 + 5
69 〇 30 + 26 47 + 38 〇 95 99 - 6 〇 94
86 〇 98 - 34 65 〇 90 - 27 54 - 30 〇 24
48 - 25 〇 78 - 23 35 + 42 〇 96 - 29 47 - 29 〇 36 - 18
27 + 25 〇 66 45 + 38 - 27 〇 45 - 39 + 27
58 + 20 - 9 〇 51 17 + 17 + 17 〇 83 - 8 - 22
72 - 34 + 25 〇 63 90 + 5 - 47 〇 90 - 47 + 5
答案
2. ＞ ＜ ＜ ＞ ＞
= ＜ ＞ = ＜
＞ ＞ ＜ = =
= ＜ ＞ = ＜
＞ ＞ ＜ = =
一根木条锯了 7 次，锯成同样长的小段，每小段长 8 厘米，这根木条原来长(
64
)厘米。答案
思维提升
64
64
