完整word版20以内加法凑十法练习题
20以内加法练习题(凑十法)
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9 + 5 = 9 + 6 = 9 +
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9 = 9 + 8 = 9 + 9 = 8
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8 + 5 = 8 + 4 = 8 + 3 =
7 + 9 = 7 + 8 = 7 +
7 =
7 + 6 = 7 + 4 = 7 +
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= 4 + 8 = 8 4 + 7 +
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9 + 5 = 8 + 5 = 7 + 4
=
8 + 5 = 9 + 2 = 6 +
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9 + 8 = 9 + 9 = 8 +
8 =
8 + 7 = 8 + 9 = 8 + 6 =
8 + 5 = 8 + 4 = 8 + 3
=
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6 + 6 = 9 + 5 = 8 +
9 =
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= 9
= 2 + 9 = 3 + 9 = 3 +
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7 + 9 = 6 + 8 = 5 +
7 =
7 + 9 = 5 + 8 = 6 +
7 =
9 + 5 = 8 + 5 = 7 + 4
=
7 + 9 = 6 + 8 = 5 +
7 =
(完整word版)凑十法练习题全部
9 + 6 = 9 + 5 = 9 + 4 =
9 + 3 = 9 + 2 = 9 + 7 =
9 + 8 = 9 + 9 = 8 + 8 =
8
+ 7 = 8 + 9 = 8 + 6 =
8 + 5 = 8 + 4 = 8 + 3 =
7 + 9 = 7 + 8 = 7 + 7 =
7 + 6 = 7 + 4 = 7 + 5 =
6 + 9 = 6 + 8 = 6 + 7 =
6 + 6 = 6 + 5 = 5 + 9 =
5 + 8 = 5 + 7 = 5 + 6 =
4 + 9 = 4 + 8 = 4 +
7 =
小学一年级数学20以内加法凑十法练习题
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8 + 5 =
7 + 9 =
7 + 6 =
6 + 9 =
J 20以内加法练习题(凑十法)
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一年级数学20以内加法(凑十法)练习题
1 / 5 一年级数学20以内加法(凑十法)练习题
9 + 2 = 9 + 3 = 9 + 4 =
9 + 5 = 9 + 6 = 9 + 7 =
9 + 8 = 9 + 9 = 8 + 9 =
8 + 8 = 8 + 7 = 8 + 6 =
8 + 5 = 8 + 4 = 8 + 3 =
7 + 9 = 7 + 8 = 7 + 7
=
7 + 6 = 7 + 4 = 7 + 5 =
6 + 9 = 6 + 8 = 6 + 7 =
2 / 5
6 + 6 = 6 + 5 = 5 + 9 =
5 + 8 = 5 + 7 = 5 + 6 =
4 + 9 = 4 + 8 = 4 + 7 =
20以内加法(凑十法)练习题之欧阳德创编
欧阳德创编 2021.03.07
欧阳德创编 2021.03.07 20以内加法练习题(凑十法)
时间:2021.03.07 创作:欧阳德
9 + 2 = 9 + 3 = 9 + 4 =
9 + 5 = 9 + 6 = 9 + 7 =
9 + 8 = 9 + 9 = 8 + 9 =
8 + 8 = 8 + 7 = 8 + 6 =
8 + 5 = 8 + 4 = 8 + 3 =
7 + 9 = 7 + 8 = 7 + 7 =
7 + 6 = 7 + 4 = 7 + 5 =
6 + 9 = 6 + 8 = 6 + 7 =
6 + 6 = 6 + 5 = 5 + 9 =
5 + 8 = 5 + 7 = 5 + 6 =
(完整word版)一年级数学凑十法-破十法-借十法-练习题
小学一年级上册数学试题
加法 与 减法 进位加法(凑十法口诀:看大数,分小数,凑成十,算得数。) 退位减法(破十法口诀:看大数,分出10,减小数,加剩数。)
借十法(十几减 9,几加 1;几减 8,几加 2;十几减 7,几加 3;十几减 6,几加 4;十几减 5,几加 5;十几减 4,几加 6;十几减 3,几加 7;十几减 2,几加 8;十几减 1,几加 9.)
一、“凑十法”:
1.“凑十法”是 20 以内进位加法的基本思路。运用“凑十法”能够将 20 以内的进位加法转化
为学生所熟悉的 10 加几的题目,从而化难为简。 那么“凑十法”在具体计算中是如何“凑”十的呢,我们看以下例题:
在计算 9+4 时,先把 4 分成 1 和 3,然后 9 和 1 凑成 10,10 再加上 3 等于 13;这就是“凑十法”。
2.“凑十歌”:
1 凑 9 2 凑 8 3 凑 7 来 4 凑 6 5、5 相凑正满 10 做减做加想到它,又对又快真方便!
3.“凑十法”具有很强的规律性,不仅可以在解决 20 以内进位加法的计算中用到,在不进位加法中也可以用
到。以下边例子说明:如在计算 14+5 时,先把 14 分成 10 和 4,然后 4 和 5 先加等于 9,然后再和前边的 10
相加等于 19; 二、 “借十法”(破十法):
1.“借十法”是用在 20 以内退位减法中的计算方法。运用“借十法”可将 20 以内的退位减
法转化为学生所熟悉的 10 减几的题目,从而化难为简。 那么“借十法”在具体计算中是如何“凑”十的呢,我们看以下例题:
在计算 13 减 4 时,先考虑个位 3 减 4,不够减,于是从十位借 10 来减,10 减 4 得 6,再用 6 与个位数 3 相加等于 9; 这就是“借十法”。
2.“借十法”口诀:借十法,很简单;
十几减 9,几加 1;十几减 8,几加 2;十几减 7,几加 3;十几减 6,几加 4;十几减 5,几加 5;十几减 4,几加 6;十几减 3,几加 7;十几减 2,几加 8;十几减 1,几加 9.
20以内加法(凑十法)练习题之欧阳历创编
欧阳历创编 2021..02.09
欧阳历创编 2021..02.09 20以内加法练习题(凑十法)
时间:2021.02.09 创作人:欧阳历
9 + 2 = 9 + 3 =
9 + 4 =
9 + 5 = 9 + 6 =
9 + 7 =
9 + 8 = 9 + 9 =
8 + 9 =
8 + 8 = 8 + 7 =
8 + 6 =
8 + 5 = 8 + 4 =
8 + 3 =
7 + 9 = 7 + 8 =
7 + 7 =
7 + 6 = 7 + 4 =
7 + 5 =
6 + 9 = 6 + 8 =
6 + 7 =
6 + 6 = 6 + 5 = 欧阳历创编 2021..02.09
欧阳历创编 2021..02.09 5 + 9 =
(完整word)破十法、凑十法练习题
(完整word)破十法、凑十法练习题
1 20以内退位减法---破十法、凑十法复习
【重点知识一】
凑十法:进位加法使用
凑十法口诀:看大数,分小数,凑成十,算得数
例子:
9 + 9 =
9 + 8 =
9 + 7 =
巩固练习:
7 + 9 =
7 + 8 =
7 + 7 =
9 + 9 = 9 + 8 = 9 + 7 =
【重点知识二】
破十法:退位减法使用
破十法口诀:看大数,分出10,减小数,加剩数
例子:
18 – 9 = 17 – 9 = 16 – 9 = 15 – 9 = (完整word)破十法、凑十法练习题
2
巩固练习:
17 – 8 = 16 – 8 = 15 – 8 = 14 – 8 =
13 – 8 = 12 – 8 = 11 – 8 = 16 – 7 =
提升练习题
一、 口算
12– 6 = 11 – 6 = 14 – 5 = 13 – 5 =
6 + 9 =
6 + 8 = 6 + 7 =
(完整word)破十法、凑十法练习题
3
二、 判断□里的数对不对?对的画“√”,错的画“×”.
13-6=5( ) 15-7=9
(
) 11-2=9(
)
6+9=15( ) 16+4=20( ) 13-9=5( )
凑十法练习题(打印版)
凑十法练习题(打印版)
### 凑十法练习题(打印版)
一、基础知识点回顾
凑十法是一种简便的计算方法,主要用于快速完成20以内的加法。其核心思想是将一个加数分解,使得分解后的数与另一个加数相加等于10。
二、凑十法练习题
1. 基础练习题
- 题目1:3 + 7 = ?
- 题目2:5 + 5 = ?
- 题目3:6 + 4 = ?
2. 进阶练习题
- 题目4:8 + 7 = ?
- 题目5:9 + 6 = ?
- 题目6:7 + 8 = ?
3. 混合练习题
- 题目7:5 + 9 + 3 = ?
- 题目8:6 + 7 + 4 = ?
- 题目9:8 + 5 + 2 = ?
4. 应用练习题
- 题目10:小明有7个苹果,妈妈又给他3个,他一共有多少个苹果?
- 题目11:小红有5个橘子,爸爸又给她5个,她一共有多少个橘子?
- 题目12:小华有6个梨,妈妈又给他4个,他一共有多少个梨?
5. 挑战练习题
- 题目13:23 + 17 = ?
- 题目14:35 + 15 = ?
- 题目15:47 + 13 = ?
三、练习题答案
1. 基础练习题答案
- 题目1:10
- 题目2:10
- 题目3:10
2. 进阶练习题答案
- 题目4:15
- 题目5:15
- 题目6:15
3. 混合练习题答案
- 题目7:17
- 题目8:17
- 题目9:15
4. 应用练习题答案
- 题目10:10(7+3) - 题目11:10(5+5)
- 题目12:10(6+4)
5. 挑战练习题答案
- 题目13:40(23+17)
- 题目14:50(35+15)
- 题目15:60(47+13)
四、练习题使用说明
(完整版)20以内加法(凑十法)练习题
20以内加法练习题(凑十法)
9 + 2
= 9 + 3 = 9 + 4 =
9 + 5
= 9 + 6 = 9 + 7 =
9 + 8 = 9 + 9 = 8 + 9
=
8 + 8
= 8 + 7 = 8 + 6 =
8 + 5 = 8 + 4 = 8 + 3 =
7 + 9 = 7 + 8 = 7 + 7 =
7 + 6 = 7 + 4 = 7 + 5 =
6 + 9 = 6 + 8 = 6 + 7 =
6 + 6 = 6 + 5 = 5 + 9 =
5 + 8 = 5 + 7 = 5 + 6 =
4 + 9 = 4 + 8 = 4 +
20以内凑十法练习题
姓名: 日期: 用时: 得分:
3 + 8 = 3 + 9 = 2 + 7
=
6 + 6 = 6 + 5 = 5 + 9 =
9 + 3 = 9 + 2 = 9 + 7 =
8 + 7 = 8 + 9 = 8 + 6 =
9 + 6 = 9 + 5 = 9 + 4 =
9 + 8 = 9 + 9 = 8 + 8 =
8 + 7 = 8 + 9 = 8 + 6 =
8 + 5 = 8 + 4 = 8 + 3 =
7 + 9 = 7 + 8 = 7 + 7 =
姓名: 日期: 用时: 得分:
7 + 6 = 7 + 4 = 7 + 5 =
