# 算数演習/小学校1年生

### かずと　すうじ

「□」のかずは　いくつか　すうじで　こたえましょう。
(1)　□□□□□

(2)　□□

(3)　□□□□□□□□

(4)　□□□□□□□□□□

(5)　□□□□□□□□□
□□□□□□□□

### こたえ

こたえはつぎのとおりです。こたえあわせをしましょう。
(1)

${\displaystyle 5}$

(2)

${\displaystyle 2}$

(3)

${\displaystyle 8}$

(4)

${\displaystyle 10}$

(5)

${\displaystyle 17}$

### たしざん（1）

つぎのけいさんをしてみましょう。

(1)

${\displaystyle 9+1}$

(2)

${\displaystyle 4+2}$

(3)

${\displaystyle 7+1}$

(4)

${\displaystyle 5+3}$

(5)

${\displaystyle 5+4}$

(6)

${\displaystyle 7+2}$

(7)

${\displaystyle 6+3}$

(8)

${\displaystyle 4+3}$

(9)

${\displaystyle 1+3}$

(10)

${\displaystyle 9+1}$

(11)

${\displaystyle 2+1}$

(12)

${\displaystyle 2+2}$

(13)

${\displaystyle 5+5}$

(14)

${\displaystyle 8+2}$

(15)

${\displaystyle 7+3}$

(16)

${\displaystyle 8+1}$

(17)

${\displaystyle 7+3}$

(18)

${\displaystyle 5+0}$

(19)

${\displaystyle 0+6}$

(20)

${\displaystyle 0+0}$

### こたえ

こたえはつぎのとおりです。こたえあわせをしましょう。

(1)

${\displaystyle 10}$

(2)

${\displaystyle 6}$

(3)

${\displaystyle 8}$

(4)

${\displaystyle 8}$

(5)

${\displaystyle 9}$

(6)

${\displaystyle 9}$

(7)

${\displaystyle 9}$

(8)

${\displaystyle 7}$

(9)

${\displaystyle 4}$

(10)

${\displaystyle 10}$

(11)

${\displaystyle 3}$

(12)

${\displaystyle 4}$

(13)

${\displaystyle 10}$

(14)

${\displaystyle 10}$

(15)

${\displaystyle 10}$

(16)

${\displaystyle 9}$

(17)

${\displaystyle 10}$

(18)

${\displaystyle 5}$

(19)

${\displaystyle 6}$

(20)

${\displaystyle 0}$

### ひきざん（1）

つぎのけいさんをしましょう。

(1)

${\displaystyle 3-1}$

(2)

${\displaystyle 3-2}$

(3)

${\displaystyle 7-1}$

(4)

${\displaystyle 1-1}$

(5)

${\displaystyle 4-2}$

(6)

${\displaystyle 6-2}$

(7)

${\displaystyle 10-3}$

(8)

${\displaystyle 7-6}$

(9)

${\displaystyle 4-3}$

(10)

${\displaystyle 8-8}$

(11)

${\displaystyle 9-6}$

(12)

${\displaystyle 5-0}$

(13)

${\displaystyle 4-2}$

(14)

${\displaystyle 10-1}$

(15)

${\displaystyle 5-4}$

(16)

${\displaystyle 8-6}$

(17)

${\displaystyle 9-4}$

(18)

${\displaystyle 8-1}$

(19)

${\displaystyle 4-3}$

(20)

${\displaystyle 9-4}$

(21)

${\displaystyle 2-1}$

(22)

${\displaystyle 8-4}$

(23)

${\displaystyle 1-1}$

(24)

${\displaystyle 7-2}$

(25)

${\displaystyle 7-6}$

(26)

${\displaystyle 6-3}$

(27)

${\displaystyle 10-6}$

(28)

${\displaystyle 9-7}$

(29)

${\displaystyle 7-0}$

(30)

${\displaystyle 6-5}$

### こたえ

こたえはつぎのとおりです。こたえあわせをしましょう。

(1)

${\displaystyle 2}$

(2)

${\displaystyle 1}$

(3)

${\displaystyle 6}$

(4)

${\displaystyle 0}$

(5)

${\displaystyle 2}$

(6)

${\displaystyle 4}$

(7)

${\displaystyle 7}$

(8)

${\displaystyle 1}$

(9)

${\displaystyle 1}$

(10)

${\displaystyle 0}$

(11)

${\displaystyle 3}$

(12)

${\displaystyle 5}$

(13)

${\displaystyle 2}$

(14)

${\displaystyle 9}$

(15)

${\displaystyle 1}$

(16)

${\displaystyle 2}$

(17)

${\displaystyle 5}$

(18)

${\displaystyle 7}$

(19)

${\displaystyle 1}$

(20)

${\displaystyle 5}$

(21)

${\displaystyle 1}$

(22)

${\displaystyle 4}$

(23)

${\displaystyle 0}$

(24)

${\displaystyle 5}$

(25)

${\displaystyle 1}$

(26)

${\displaystyle 3}$

(27)

${\displaystyle 4}$

(28)

${\displaystyle 2}$

(29)

${\displaystyle 7}$

(30)

${\displaystyle 1}$

### たしざん（2）

つぎのけいさんをしましょう。

(1)

${\displaystyle 9+9}$

(2)

${\displaystyle 7+5}$

(3)

${\displaystyle 8+4}$

(4)

${\displaystyle 7+9}$

(5)

${\displaystyle 9+6}$

(6)

${\displaystyle 9+2}$

(7)

${\displaystyle 9+8}$

(8)

${\displaystyle 8+5}$

(9)

${\displaystyle 8+3}$

(10)

${\displaystyle 8+4}$

(11)

${\displaystyle 7+6}$

(12)

${\displaystyle 9+5}$

(13)

${\displaystyle 3+9}$

(14)

${\displaystyle 4+9}$

(15)

${\displaystyle 6+8}$

(16)

${\displaystyle 7+4}$

(17)

${\displaystyle 6+6}$

(18)

${\displaystyle 3+8}$

(19)

${\displaystyle 2+9}$

(20)

${\displaystyle 5+6}$

### こたえ

こたえはつぎのとおりです。こたえあわせをしましょう。

(1)

${\displaystyle 18}$

(2)

${\displaystyle 12}$

(3)

${\displaystyle 12}$

(4)

${\displaystyle 16}$

(5)

${\displaystyle 15}$

(6)

${\displaystyle 11}$

(7)

${\displaystyle 17}$

(8)

${\displaystyle 13}$

(9)

${\displaystyle 11}$

(10)

${\displaystyle 12}$

(11)

${\displaystyle 13}$

(12)

${\displaystyle 14}$

(13)

${\displaystyle 12}$

(14)

${\displaystyle 13}$

(15)

${\displaystyle 14}$

(16)

${\displaystyle 11}$

(17)

${\displaystyle 12}$

(18)

${\displaystyle 11}$

(19)

${\displaystyle 11}$

(20)

${\displaystyle 11}$

### ひきざん（2）

つぎのけいさんをしましょう。

(1)

${\displaystyle 11-5}$

(2)

${\displaystyle 13-4}$

(3)

${\displaystyle 15-8}$

(4)

${\displaystyle 17-9}$

(5)

${\displaystyle 16-7}$

(6)

${\displaystyle 12-4}$

(7)

${\displaystyle 14-7}$

(8)

${\displaystyle 11-3}$

(9)

${\displaystyle 14-6}$

(10)

${\displaystyle 18-9}$

(11)

${\displaystyle 15-7}$

(12)

${\displaystyle 12-9}$

(13)

${\displaystyle 16-9}$

(14)

${\displaystyle 13-5}$

(15)

${\displaystyle 17-8}$

(16)

${\displaystyle 11-8}$

(17)

${\displaystyle 15-6}$

(18)

${\displaystyle 12-5}$

(19)

${\displaystyle 14-9}$

(20)

${\displaystyle 13-7}$

### こたえ

こたえはつぎのとおりです。こたえあわせをしましょう。

(1)

${\displaystyle 6}$

(2)

${\displaystyle 9}$

(3)

${\displaystyle 7}$

(4)

${\displaystyle 8}$

(5)

${\displaystyle 9}$

(6)

${\displaystyle 8}$

(7)

${\displaystyle 7}$

(8)

${\displaystyle 8}$

(9)

${\displaystyle 8}$

(10)

${\displaystyle 9}$

(11)

${\displaystyle 8}$

(12)

${\displaystyle 3}$

(13)

${\displaystyle 7}$

(14)

${\displaystyle 8}$

(15)

${\displaystyle 9}$

(16)

${\displaystyle 3}$

(17)

${\displaystyle 9}$

(18)

${\displaystyle 7}$

(19)

${\displaystyle 5}$

(20)

${\displaystyle 6}$

### たしざん（3）

つぎのけいさんをしましょう。

(1)

${\displaystyle 10+9}$

(2)

${\displaystyle 10+6}$

(3)

${\displaystyle 10+1}$

(4)

${\displaystyle 10+4}$

(5)

${\displaystyle 10+3}$

(6)

${\displaystyle 10+5}$

(7)

${\displaystyle 10+8}$

(8)

${\displaystyle 10+5}$

(9)

${\displaystyle 10+2}$

### こたえ

こたえはつぎのとおりです。こたえあわせをしましょう。

(1)

${\displaystyle 19}$

(2)

${\displaystyle 16}$

(3)

${\displaystyle 11}$

(4)

${\displaystyle 14}$

(5)

${\displaystyle 13}$

(6)

${\displaystyle 15}$

(7)

${\displaystyle 18}$

(8)

${\displaystyle 15}$

(9)

${\displaystyle 12}$

### ひきざん（3）

つぎのけいさんをしましょう。

(1)

${\displaystyle 17-7}$

(2)

${\displaystyle 13-3}$

(3)

${\displaystyle 14-4}$

(4)

${\displaystyle 11-1}$

(5)

${\displaystyle 19-9}$

(6)

${\displaystyle 15-5}$

(7)

${\displaystyle 12-2}$

(8)

${\displaystyle 18-8}$

(9)

${\displaystyle 16-6}$

### こたえ

こたえはつぎのとおりです。こたえあわせをしましょう。

(1)

${\displaystyle 10}$

(2)

${\displaystyle 10}$

(3)

${\displaystyle 10}$

(4)

${\displaystyle 10}$

(5)

${\displaystyle 10}$

(6)

${\displaystyle 10}$

(7)

${\displaystyle 10}$

(8)

${\displaystyle 10}$

(9)

${\displaystyle 10}$

### 3つのかずのけいさん

つぎのけいさんをしましょう。

(1)

${\displaystyle 2+3+4}$

(2)

${\displaystyle 4+5+1}$

(3)

${\displaystyle 2+5+3}$

(4)

${\displaystyle 5+5+4}$

(5)

${\displaystyle 8+2+9}$

(6)

${\displaystyle 9-3-2}$

(7)

${\displaystyle 8-6-1}$

(8)

${\displaystyle 10-3-4}$

(9)

${\displaystyle 15-5-7}$

(10)

${\displaystyle 17-7-2}$

(11)

${\displaystyle 9-6+3}$

(12)

${\displaystyle 10-8+7}$

(13)

${\displaystyle 10-5+3}$

(14)

${\displaystyle 14-4+2}$

(15)

${\displaystyle 19-9+6}$

(16)

${\displaystyle 3+5-4}$

(17)

${\displaystyle 7+2-6}$

(18)

${\displaystyle 8+2-5}$

(19)

${\displaystyle 4+6-3}$

(20)

${\displaystyle 5+5-8}$

### こたえ

こたえはつぎのとおりです。こたえあわせをしましょう。

(1)

${\displaystyle 9}$

(2)

${\displaystyle 10}$

(3)

${\displaystyle 10}$

(4)

${\displaystyle 14}$

(5)

${\displaystyle 19}$

(6)

${\displaystyle 4}$

(7)

${\displaystyle 1}$

(8)

${\displaystyle 3}$

(9)

${\displaystyle 3}$

(10)

${\displaystyle 8}$

(11)

${\displaystyle 6}$

(12)

${\displaystyle 9}$

(13)

${\displaystyle 8}$

(14)

${\displaystyle 12}$

(15)

${\displaystyle 16}$

(16)

${\displaystyle 4}$

(17)

${\displaystyle 3}$

(18)

${\displaystyle 5}$

(19)

${\displaystyle 7}$

(20)

${\displaystyle 2}$