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2. 夺小旗。(算一算)
答案：
10 17 14 12 17 15 12 10 16 13
3. 在□里填上合适的数,在〇里填上“+”或“-”。
5 + □ = 13 4 + 9 = □ □ + 8 = 11
8 〇 9 = 17 4 + □ + 7 = 18 16 〇 5 = 11
8 + 7 = □ 8 〇 8 = 16 6 + 9 + 4 = □
5 + □ = 13 4 + 9 = □ □ + 8 = 11
8 〇 9 = 17 4 + □ + 7 = 18 16 〇 5 = 11
8 + 7 = □ 8 〇 8 = 16 6 + 9 + 4 = □
答案：
8 13 3 + 7 - 15 + 19
4. 在〇里填上“＞”“＜”或“=”。
6 + 8 〇 15 9 〇 19 - 10 7 + 9 〇 16
10 - 7 〇 7 12 〇 3 + 7 9 + 8 〇 20
6 + 8 〇 15 9 〇 19 - 10 7 + 9 〇 16
10 - 7 〇 7 12 〇 3 + 7 9 + 8 〇 20
答案：
＜ = = ＜ ＞ ＜
四、看图列式并计算。
1.
□〇□ = □(个)
2.
□〇□ = □(本)
3.
□〇□ = □(朵)
4.
□〇□〇□ = □(个)
1.
□〇□ = □(个)
2.
□〇□ = □(本)
3.
□〇□ = □(朵)
4.
□〇□〇□ = □(个)
答案：
1.7+4=11 2.12-2=10 3.6-6=0 4.12-2-3=7
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