# 4ページ目の練習 文字式の掛け算・割り算 数学・算数の教材公開ページ

20

## 全文

(1)

(1) ³−4 7b

´

× 1 6b

3 (2)

6a2

× 7 4a

(3) 6 5n×

³

−5 4n

´

(4) 1 6m

3

× 2 5m

4

(5) 6 5m

2

× 7 4m

4 (6) ³

−5 6m

÷

³

−1 2m

(7) 1 6y

3

÷

³

−4 3y

(8) ³

−1 2y

÷

³

−1 6y

(9) ³−1 6a

÷

³

−3 2a

(10) ³

−5 6c

÷

³

−1 3c

(11) a6÷a3÷a (12) n4÷n÷n2

(13) x3

×x2÷x (14) x2÷x×x2

(15) (−2z)×2z×z (16) 3a3÷3a2×¡−3a2¢

(17) (0x)×3x2÷3x (18) 3m6÷(−m)÷¡−3m3¢

(2)

(1) ³−4 7b

´

× 1 6b

3

4

(2) 6a2

× 7 4a

3

(3) 6 5n×

³

−5 4n

´

2

(4) 1 6m

3

× 2 5m

4

7

(5) 6 5m

2

× 7 4m

4

6

(6) ³−5 6m

÷

³

−1 2m

2

(7) 1 6y

3

÷

³

−4 3y

(8) ³−1 2y

÷

³

−1 6y

(9) ³−1 6a

÷

³

−3 2a

4

(10) ³−5 6c

÷

³

−1 3c

3

(11) a6÷a3÷a

2

(12) n4÷n÷n2

(13) x3

×x2÷x

4

(14) x2

÷x×x2

3

(15) (−2z)×2z×z

3

(16) 3a3

÷3a2×¡−3a2¢

3

(17) (0x)×3x2÷3x

## x

2

(18) 3m6÷(−m)÷¡−3m3¢

## m

2

(19) (−3y)÷(−y)×3y

## y

(20) ¡

−2x3¢×¡−2x3¢×¡−4x4¢

## x

(3)

(1) ³−6 5a

´

×

³

−2 3a

(2) ³

−6 5n

× 5 3n

3

(3) ³−3 4z

× 1 6z

2 (4) 3

5c

2

× 5 6c

2

(5) 2 5z

4

×

³

−1 6z

(6) 5

2x

7

÷ 3 4x

4

(7) ³−7 4a

÷

³

−5 2a

(8) ³

−5 6a

÷

³

−4 3a

(9) ³−5 6x

÷ 1 3x

4 (10) ³

−1 6x

÷ 4 3x

4

(11) z4×z2×z (12) y6÷y÷y2

(13) n8

÷n4÷n3 (14) c3÷c2×c4

(15) ¡

0n3¢

×2n4÷¡−2n3¢ (16) 32x8÷(−4x)÷¡−2x2¢

(17) 3z×¡−4z2¢×¡−3z3¢ (18) 3x3×3x2×¡−3x4¢

(19) 6z3

(4)

(1) ³−6 5a

´

×

³

−2 3a

3

(2) ³−6 5n

× 5 3n

3

7

(3) ³−3 4z

× 1 6z

2

5

(4) 3 5c

2

× 5 6c

2

4

(5) 2 5z

4

×

³

−1 6z

6

(6) 5 2x

7

÷ 3 4x

4

3

(7) ³−7 4a

÷

³

−5 2a

2

(8) ³−5 6a

÷

³

−4 3a

(9) ³−5 6x

÷ 1 3x

4

2

(10) ³−1 6x

÷ 4 3x

4

4

(11) z4×z2×z

7

(12) y6÷y÷y2

3

(13) n8

÷n4÷n3

(14) c3

÷c2×c4

5

(15) ¡

0n3¢

×2n4÷¡−2n3¢

4

(16) 32x8

÷(−4x)÷¡−2x2¢

## x

5

(17) 3z×¡−4z2¢×¡−3z3¢

## z

6

(18) 3x3×3x2×¡−3x4¢

9

(19) 6z3

÷3z3×4z

## z

(5)

(1) 5 6b×

³

−3 5b

´

(2) 4 3c×

6 5c

4

(3) 5 4z

3

×¡−6z4¢ (4) ¡−6x4¢×

³

− 4 3x

(5) 1 6y×

³

−2 5y

(6) 5

6z

2

÷

³

−4 3z

´

(7) ³−2 3y

÷ 5 6 y

3 (8) 2

3n

8

÷

³

−1 6n

(9) ³−5 3x

÷ 1 6x

4 (10) 5

6x

6

÷ 3 2x

4

(11) b÷b×b (12) x2÷x×x

(13) z4

×z3×z2 (14) c8÷c2÷c4

(15) a3

×3a2×¡−3a2¢ (16) ¡−3c3¢÷2c3×¡−6c4¢

(17) (0b)×¡−4b3¢÷3b3 (18) ¡−3b4¢×b4×¡−4b4¢

(19) ¡

(6)

(1) 5 6b×

³

−3 5b

´

2

(2) 4 3c×

6 5c

4

5

(3) 5 4z

3

×¡−6z4¢

7

(4) ¡

−6x4¢×

³

− 4 3x

6

(5) 1 6y×

³

−2 5y

4

(6) 5 6z

2

÷

³

−4 3z

´

(7) ³−2 3y

÷ 5 6 y

3

3

(8) 2 3n

8

÷

³

−1 6n

4

(9) ³−5 3x

÷ 1 6x

4

4

(10) 5 6x

6

÷ 3 2x

4

2

(11) b÷b×b

(12) x2÷x×x

2

(13) z4

×z3×z2

9

(14) c8

÷c2÷c4

2

(15) a3

×3a2×¡−3a2¢

7

(16) ¡

−3c3¢÷2c3×¡−6c4¢

## c

4

(17) (0b)×¡−4b3¢÷3b3

(18) ¡

−3b4¢×b4×¡−4b4¢

## b

12

(19) ¡

−12b9¢÷(−2b)÷(−3b)

## b

7

(20) 12b5

(7)

(1) ¡

−6z3¢× 4

3z (2)

5 2c

3

× 6 5c

2

(3) ³−6 5z

´

×

³

−5 3z

4´ (4) ¡

−2m3¢× 5 4m

2

(5) 4 7n×

³

−5 6n

(6) ³

−5 4y

÷ 1 6y

4

(7) 5 4c

4

÷

³

−5 6c

(8) ³

−5 6a

÷

³

−3 2a

´

(9) ³−3 4n

÷

³

−5 6n

(10) ³

−5 6n

÷

³

−5 3n

´

(11) c2×c3×c4 (12) x7÷x3÷x2

(13) a4

÷a4×a (14) c×c2÷c3

(15) ¡

−2y3¢×4y2÷(−2y) (16) ¡−n4¢÷n×4n

(17) 2y2÷y×¡−2y3¢ (18) ¡−8m7¢÷¡−2m4¢÷(−4m)

(8)

(1) ¡

−6z3¢× 4 3z

4

(2) 5 2c

3

× 6 5c

2

5

(3) ³−6 5z

´

×

³

−5 3z

5

(4) ¡

−2m3¢× 5 4m

2

5

(5) 4 7n×

³

−5 6n

4

(6) ³−5 4y

÷ 1 6y

4

4

(7) 5 4c

4

÷

³

−5 6c

(8) ³−5 6a

÷

³

−3 2a

´

3

(9) ³−3 4n

÷

³

−5 6n

(10) ³−5 6n

÷

³

−5 3n

´

2

(11) c2×c3×c4

9

(12) x7÷x3÷x2

2

(13) a4

÷a4×a

(14) c×c2÷c3

(15) ¡

−2y3¢×4y2÷(−2y)

4

(16) ¡

−n4¢÷n×4n

## n

4

(17) 2y2÷y×¡−2y3¢

## y

4

(18) ¡

−8m7¢÷¡−2m4¢÷(−4m)

## m

2

(19) (−2m)×3m×2m2

## m

4

(20) ¡

(9)

(1) 6m4

× 5 4m

3 (2) 6

5y×

³

− 5 3y

(3) ³−7 4x

´

×

³

−2 5x

´

(4) ³−6 5c

´

× 3 4c

(5) ³−4 3n

´

× 1 2n

2 (6) 5

2y

2

÷

³

−1 6y

´

(7) 5 6m

4

÷ 5 3m

2 (8) 5

3a

5

÷

³

−1 6a

(9) ³−1 6b

÷

³

−2 3b

´

(10) ³−5 2m

÷

³

−3 4m

(11) x2 ÷x×x4 (12) z×z4÷z

(13) n×n×n (14) z3×z×z4

(15) ¡

−8a2¢÷2a×(−2a) (16) 4c3×(−4c)÷2c4

(17) 2x×¡−3x3¢×x4 (18) 4b3×2b3 ÷¡−b3¢

(19) y3

(10)

(1) 6m4

× 5 4m

3

7

(2) 6 5y×

³

− 5 3y

5

(3) ³−7 4x

´

×

³

−2 5x

´

2

(4) ³−6 5c

´

× 3 4c

2

(5) ³−4 3n

´

× 1 2n

2

3

(6) 5 2y

2

÷

³

−1 6y

´

(7) 5 6m

4

÷ 5 3m

2

2

(8) 5 3a

5

÷

³

−1 6a

3

(9) ³−1 6b

÷

³

−2 3b

´

3

(10) ³−5 2m

÷

³

−3 4m

4

(11) x2 ÷x×x4

5

(12) z×z4÷z

4

(13) n×n×n

3

(14) z3

×z×z4

8

(15) ¡

−8a2¢÷2a×(−2a)

## a

2

(16) 4c3×(−4c)÷2c4

## 8

(17) 2x×¡−3x3¢×x4

## x

8

(18) 4b3×2b3 ÷¡−b3¢

3

(19) y3

×¡−2y4¢×(−3y)

## y

8

(20) ¡

(11)

(1) 5 6y

2

×

³

−3 4y

(2)

(−6c)× 1 3c

3

(3) ³−1 6m

×

³

−3 5m

(4)

6c3

×

³

−1 2c

´

(5) ³−5 2z

×

³

−6 5z

(6) ³

−7 4a

÷

³

−1 2a

(7) 2 3m

5

÷

³

−5 6m

(8) 3

4n

5

÷

³

−1 6n

(9) 5 4x

4

÷ 1 2x

2

(10) ³−1 6z

÷ 5 3z

2

(11) a4÷a4×a4 (12) n10÷n÷n2

(13) b2

×b3×b (14) x4÷x4×x

(15) 4a3

×¡−3a3¢÷4a3 (16) (−4x)÷3x×¡−3x4¢

(17) 3a4×9a÷(−3a) (18) ¡−2z2¢×¡−4z4¢÷z3

(19) ¡

(12)

(1) 5 6y

2

×

³

−3 4y

4

(2) (−6c)× 1 3c

3

4

(3) ³−1 6m

×

³

−3 5m

6

(4) 6c3

×

³

−1 2c

´

4

(5) ³−5 2z

×

³

−6 5z

4

(6) ³−7 4a

÷

³

−1 2a

4

(7) 2 3m

5

÷

³

−5 6m

(8) 3 4n

5

÷

³

−1 6n

2

(9) 5 4x

4

÷ 1 2x

2

2

(10) ³−1 6z

÷ 5 3z

2

2

(11) a4÷a4×a4

4

(12) n10÷n÷n2

7

(13) b2

×b3×b

6

(14) x4

÷x4×x

(15) 4a3

×¡−3a3¢÷4a3

## a

3

(16) (−4x)÷3x×¡−3x4¢

## x

4

(17) 3a4×9a÷(−3a)

4

(18) ¡

−2z2¢×¡−4z4¢÷z3

3

(19) ¡

−4b7¢÷2b2÷¡−2b2¢

## b

3

(20) 2c3

(13)

(1) ³−1 2x

×4x2 (2) ¡−4m4¢× 1

2m

3

(3) ³−1 3b

×6b3 (4)

³

−2 3c

×(−6c)

(5) 2 3x

4

× 5 4x

4 (6) ³

−5 3n

÷

³

−1 6n

´

(7) 3 4a

5

÷ 1 2a

4 (8) 1

2m

6

÷

³

−7 4m

(9) ³−3 4a

÷

³

−1 6a

(10) ³

−2 3y

÷

³

−1 6y

(11) z4÷z3÷z (12) b2×b3÷b

(13) c7

÷c÷c4 (14) n4÷n×n4

(15) ¡

−32x5¢÷2x÷(−4x) (16) 8z2×(−2z)÷2z

(17) 4a2×3a2×3a2 (18) (−c)×2c÷(−2c)

(19) ¡

(14)

(1) ³−1 2x

×4x2

4

(2) ¡

−4m4¢× 1 2m

3

7

(3) ³−1 3b

×6b3

5

(4) ³−2 3c

×(−6c)

3

(5) 2 3x

4

× 5 4x

4

8

(6) ³−5 3n

÷

³

−1 6n

´

2

(7) 3 4a

5

÷ 1 2a

4

(8) 1 2m

6

÷

³

−7 4m

4

(9) ³−3 4a

÷

³

−1 6a

3

(10) ³−2 3y

÷

³

−1 6y

(11) z4÷z3÷z

(12) b2×b3÷b

4

(13) c7

÷c÷c4

2

(14) n4

÷n×n4

7

(15) ¡

−32x5¢÷2x÷(−4x)

## x

3

(16) 8z2×(−2z)÷2z

2

(17) 4a2×3a2×3a2

## a

6

(18) (−c)×2c÷(−2c)

## c

(19) ¡

−2m4¢×¡−3m3¢÷¡−2m2¢

## m

5

(20) ¡

(15)

(1) 6 5c

4

× 1 4c

3 (2)

(−6y)× 1 4y

3

(3) ³−1 6c

×¡−3c3¢ (4)

³

−5 3z

× 6 5z

2

(5) ³−3 2n

´

×4n (6)

³

−3 4y

÷

³

−1 6y

(7) ³−5 3z

÷ 1 6z

4 (8) 1

6a

3

÷ 1 2a

2

(9) 5 3m

4

÷

³

−1 6m

3´ (10) 5

3b

5

÷ 5 6b

3

(11) n2÷n×n (12) m×m3×m3

(13) m2

×m2÷m2 (14) z2×z2×z2

(15) ¡

−4b2¢×¡−4b4¢÷4b3 (16) 3y4×3y2÷¡−3y3¢

(17) ¡

−6z9¢÷z4÷2z4 (18) 18b7÷3b2÷(−2b)

(19) a2

(16)

(1) 6 5c

4

× 1 4c

3

7

(2) (−6y)× 1 4y

3

4

(3) ³−1 6c

×¡−3c3¢

7

(4) ³−5 3z

× 6 5z

2

6

(5) ³−3 2n

´

×4n

2

(6) ³−3 4y

÷

³

−1 6y

(7) ³−5 3z

÷ 1 6z

4

2

(8) 1 6a

3

÷ 1 2a

2

(9) 5 3m

4

÷

³

−1 6m

(10) 5 3b

5

÷ 5 6b

3

2

(11) n2÷n×n

2

(12) m×m3×m3

7

(13) m2

×m2÷m2

2

(14) z2

×z2×z2

6

(15) ¡

−4b2¢×¡−4b4¢÷4b3

3

(16) 3y4

×3y2÷¡−3y3¢

3

(17) ¡

−6z9¢÷z4÷2z4

## z

(18) 18b7÷3b2÷(−2b)

4

(19) a2

×¡−2a2¢÷¡−2a3¢

(20) 12x9

÷3x2÷(−2x)

## x

(17)

(1) ³−2 3n

×

³

−1 6n

(2) 2

3c

4

×6c3

(3) 2 3a

4

×6a (4) 1

6n

4

×(−3n)

(5) ³−3 4n

×

³

−5 6n

(6) ³

−1 6m

÷ 1 3m

2

(7) 5 2n

5

÷ 1 4n

3 (8) ³

−5 6c

÷

³

−1 4c

(9) ³−1 2a

÷

³

−7 4a

´

(10) 5 6a

8

÷

³

−2 3a

(11) y3÷y3×y3 (12) b3÷b2×b3

(13) m3

÷m2×m3 (14) c8÷c÷c

(15) 4n3×3n2÷2n2 (16) (−3n)×(−4n)×4n

(17) 6n10÷(−3n)÷¡−n3¢ (18) ¡−c4¢×¡−2c3¢÷c7

(19) ¡

(18)

(1) ³−2 3n

×

³

−1 6n

7

(2) 2 3c

4

×6c3

7

(3) 2 3a

4

×6a

5

(4) 1 6n

4

×(−3n)

5

(5) ³−3 4n

×

³

−5 6n

6

(6) ³−1 6m

÷ 1 3m

2

3

(7) 5 2n

5

÷ 1 4n

3

2

(8) ³−5 6c

÷

³

−1 4c

3

(9) ³−1 2a

÷

³

−7 4a

´

(10) 5 6a

8

÷

³

−2 3a

4

(11) y3÷y3×y3

3

(12) b3÷b2×b3

4

(13) m3

÷m2×m3

4

(14) c8

÷c÷c

6

(15) 4n3×3n2÷2n2

## n

3

(16) (−3n)×(−4n)×4n

## n

3

(17) 6n10÷(−3n)÷¡−n3¢

6

(18) ¡

−c4¢×¡−2c3¢÷c7

## 2

(19) ¡

−3n2¢×¡−3n3¢÷¡−3n5¢

(20) (−m)×2m×m

## m

(19)

(1) ³−2 3a

×6a2 (2) ¡−6b3¢×

³

−4 3b

(3) 5 6b

2

×(−3b) (4) 5

4b×(−6b)

(5) ³−5 2n

´

× 4 7n

2 (6) 3

2c

5

÷

³

−1 6c

(7) 5 6c

4

÷

³

−1 3c

(8) ³

−3 2n

÷

³

−1 6n

(9) 5 6a

5

÷

³

−4 3a

(10) ³

−1 6y

÷ 2 3y

2

(11) y×y÷y2 (12) m8÷m3÷m4

(13) a3

×a÷a (14) n4÷n×n4

(15) 9z4÷3z2×3z (16) ¡−48m5¢÷3m4÷(−4m)

(17) ¡

−3b2¢×(−b)÷b2 (18) 4b×¡−4b2¢×(−b)

(19) ¡

(20)

(1) ³−2 3a

×6a2

5

(2) ¡

−6b3¢×

³

−4 3b

6

(3) 5 6b

2

×(−3b)

3

(4) 5

4b×(−6b)

2

(5) ³−5 2n

´

× 4 7n

2

3

(6) 3 2c

5

÷

³

−1 6c

3

(7) 5 6c

4

÷

³

−1 3c

2

(8) ³−3 2n

÷

³

−1 6n

2

(9) 5 6a

5

÷

³

−4 3a

3

(10) ³−1 6y

÷ 2 3y

2

4

(11) y×y÷y2

(12) m8÷m3÷m4

(13) a3

×a÷a

3

(14) n4

÷n×n4

7

(15) 9z4÷3z2×3z

3

(16) ¡

−48m5¢÷3m4÷(−4m)

(17) ¡

−3b2¢×(−b)÷b2

## b

(18) 4b×¡−4b2¢×(−b)

4

(19) ¡

−4a4¢×4a÷(−a)

4

(20) b2

×2b4÷¡−2b3¢

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