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题型:解决问题 题类:常考题 难易度:困难
两位数加两位数(进位)1136(10题)
34 17 30 29 21 22 24
先看末尾个位相加的数是不是1,然后再看十位上的数相加是不是5.
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34 +17 = 51 – 19 = 28 + 27 – 25= 100 – 48 + 37 = 6 + 6 + 6 =
6 × 3 = 4× 4= 3 ×3 = 5×2 = 2×4 =
①45+37=
②90-55=
③22+38=
④72-39=
⑤57-32=
⑥9+46=
67+29= 54+36= 91-25= 100-46=
32+17+48= 84-(33-24)= 67+16-45= 21+(53-27)=
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