# 3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) 6 5z ×

3 4z

4 (2)

3m2×

³

−5

6m ´

(3) (−6c)×

³

− 2

3c

2´ (4) 1

6z

2 ÷ 5

3z

(5) 4 3c

4 ÷ 1

6c

3 (6) ³

−5

4y

5´ ÷

³

−1

6y

(7) m4×m÷m3 (8) z2×z2÷z2

(9) m4

×m÷m2 (10) x4÷x3×x4

(11) a2÷a2×a4 (12) c4÷c×c3

(13) 4b4

×4b÷b5 (14) 2z3×¡−4z3¢÷¡−2z6¢

(15) (−a)×¡−2a2¢÷a3 (16) ¡−9m3¢×3m3÷¡−3m2¢

(17) (−y)÷(−y)×2y3 (18) ¡−3m2¢÷(−3m)×¡−m4¢

(19) ¡

(2)

(1) 6 5z ×

3 4z

4

5

(2) 3m2×

³

−5

6m ´

3

(3) (−6c)×

³

− 2

3c

3

(4) 1 6z

2 ÷ 5

3z

(5) 4 3c

4 ÷ 1

6c

3

(6) ³−5

4y

5´ ÷

³

−1

6y

3

(7) m4×m÷m3

2

(8) z2×z2÷z2

2

(9) m4

×m÷m2

3

(10) x4

÷x3×x4

5

(11) a2÷a2×a4

4

(12) c4÷c×c3

6

(13) 4b4

×4b÷b5

## 16

(14) 2z3×¡−4z3¢÷¡−2z6¢

## 4

(15) (−a)×¡−2a2¢÷a3

(16) ¡

−9m3¢×3m3÷¡−3m2¢

## m

4

(17) (−y)÷(−y)×2y3

## y

3

(18) ¡

−3m2¢÷(−3m)×¡−m4¢

5

(19) ¡

−8n4¢÷4n×(−4n)

4

(20) b3

÷¡−2b3¢×8b2

## b

(3)

(1) 3 2b

2 ×

³

−5

6b

(2) 6

5b

2 ×

³

−1

3b

(3) ³−6

5z ´

×

³

−1

3z

(4) ³

−4

3c

4´ ÷

³

−1

6c

(5) 1 4a

5 ÷

³

−1

2a

(6) ³

−5

3n

5´ ÷ 5

6n

(7) y2×y3÷y5 (8) y×y4÷y5

(9) n3

×n2÷n3 (10) b3÷b2×b3

(11) y÷y×y2 (12) x4÷x×x

(13) ¡

−4a4¢×¡−12a3¢÷3a6 (14) (−12c)×¡−2c4¢÷3c4

(15) ¡

−4x4¢×16x4÷4x7 (16) ¡−8m2¢×4m3÷2m3

(17) ¡

−4z2¢÷(−z)×4z (18) ¡−9n4¢÷3n3×¡−3n3¢

(19) 3c4

(4)

(1) 3 2b

2 ×

³

−5

6b

4

(2) 6 5b

2 ×

³

−1

3b

6

(3) ³−6

5z ´

×

³

−1

3z

4

(4) ³−4

3c

4´ ÷

³

−1

6c

(5) 1 4a

5 ÷

³

−1

2a

2

(6) ³−5

3n

5´ ÷ 5

6n

4

(7) y2×y3÷y5

(8) y×y4÷y5

(9) n3

×n2÷n3

2

(10) b3

÷b2×b3

4

(11) y÷y×y2

2

(12) x4÷x×x

## x

4

(13) ¡

−4a4¢×¡−12a3¢÷3a6

## a

(14) (−12c)×¡−2c4¢÷3c4

(15) ¡

−4x4¢×16x4÷4x7

(16) ¡

−8m2¢×4m3÷2m3

2

(17) ¡

−4z2¢÷(−z)×4z

2

(18) ¡

−9n4¢÷3n3×¡−3n3¢

4

(19) 3c4

÷4c×16c2

## c

5

(20) 4a÷2a×4a2

(5)

(1) 4y2 × 5

6y

2 (2) 4

3z × 5 6z

3

(3) 6y3× 1

2y

3

(4) 2 3y

4 ÷

³

−5

6y

(5) 1 3a

5 ÷

³

−5

6a ´

(6) 2 3m

6 ÷

³

−1

6m

(7) m3×m÷m4 (8) n2×n2÷n3

(9) m4

×m3÷m6 (10) c3÷c2×c3

(11) b2÷b×b2 (12) y÷y×y

(13) ¡

−3c3¢×¡−3c4¢÷¡−c5¢ (14) 4z2×(−12z)÷(−3z)

(15) ¡

−16b3¢×(−2b)÷¡−4b2¢ (16) ¡−9n3¢×¡−4n2¢÷¡−3n3¢

(17) ¡

−a4¢÷3a4×9a (18) 3a2÷(−3a)×3a3

(6)

(1) 4y2 × 5

6y

2

4

(2) 4 3z ×

5 6z

3

4

(3) 6y3× 1

2y

3

6

(4) 2 3y

4 ÷

³

−5

6y

(5) 1 3a

5 ÷

³

−5

6a ´

4

(6) 2 3m

6 ÷

³

−1

6m

4

(7) m3×m÷m4

(8) n2×n2÷n3

(9) m4

×m3÷m6

(10) c3

÷c2×c3

4

(11) b2÷b×b2

3

(12) y÷y×y

## y

(13) ¡

−3c3¢×¡−3c4¢÷¡−c5¢

2

(14) 4z2

×(−12z)÷(−3z)

## z

2

(15) ¡

−16b3¢×(−2b)÷¡−4b2¢

## b

2

(16) ¡

−9n3¢×¡−4n2¢÷¡−3n3¢

2

(17) ¡

−a4¢÷3a4×9a

## a

(18) 3a2÷(−3a)×3a3

## a

4

(19) (−4m)÷(−m)×¡−m3¢

## m

3

(20) ¡

−6x2¢÷(−3x)×4x4

(7)

(1) 5 6m

3 ×

³

−4

7m

(2) ³

−5

6n ´

× 2

3n

2

(3) 5

6y×(−3y) (4)

³

−1

2a

6´ ÷

³

−7

4a

(5) 3 2c

6 ÷ 5

6c

2 (6) ³

−1

6y

5´ ÷ 2

3y

(7) m4×m÷m3 (8) m×m2÷m2

(9) a2

×a4÷a (10) b÷b×b3

(11) n2÷n2×n3 (12) z4÷z×z

(13) 12y4

×2y3÷4y4 (14) ¡−4m4¢×2m2÷¡−2m5¢

(15) 8x2

×¡−x4¢÷2x2 (16) x3×¡−x3¢÷x6

(17) ¡

−z3¢÷z3×(−4z) (18) ¡−3z4¢÷z3×4z

(19) z4

(8)

(1) 5 6m

3 ×

³

−4

7m

7

(2) ³−5

6n ´

× 2

3n

2

3

(3) 5

6y×(−3y)

2

(4) ³−1

2a

6´ ÷

³

−7

4a

4

(5) 3 2c

6 ÷ 5

6c

2

4

(6) ³−1

6y

5´ ÷ 2

3y

4

(7) m4×m÷m3

2

(8) m×m2÷m2

(9) a2

×a4÷a

5

(10) b÷b×b3

3

(11) n2÷n2×n3

3

(12) z4÷z×z

4

(13) 12y4

×2y3÷4y4

3

(14) ¡

−4m4¢×2m2÷¡−2m5¢

(15) 8x2

×¡−x4¢÷2x2

4

(16) x3

×¡−x3¢÷x6

(17) ¡

−z3¢÷z3×(−4z)

(18) ¡

−3z4¢÷z3×4z

2

(19) z4

÷z×¡−z4¢

## z

7

(20) ¡

−12z2¢÷¡−4z2¢×2z4

(9)

(1) 1 6m

3 × 3

2m (2)

7 4x

2 × 2

3x

(3) 1 6n×

³

−3

4n ´

(4) 5 6x

3 ÷ 1

3x

(5) ³−5

6y

5´ ÷

³

−3

4y

(6) ³

−5

6c

5´ ÷ 1

2c

3

(7) m×m3÷m3 (8) z2×z2÷z4

(9) x3

×x2÷x4 (10) n2÷n2×n2

(11) y3÷y2×y (12) x÷x×x3

(13) n2×2n4÷¡−2n2¢ (14) ¡−x4¢×2x÷¡−x4¢

(15) ¡

−8y4¢×¡−y2¢÷4y3 (16) ¡−4a4¢×2a3÷¡−2a2¢

(17) ¡

−4n3¢÷¡−n2¢×(−4n) (18) 6x3÷(−3x)×3x2

(10)

(1) 1 6m

3 × 3

2m

4

(2) 7 4x

2 × 2

3x

3

(3) 1 6n×

³

−3

4n ´

2

(4) 5 6x

3 ÷ 1

3x

2

(5) ³−5

6y

5´ ÷

³

−3

4y

(6) ³−5

6c

5´ ÷ 1

2c

3

2

(7) m×m3÷m3

(8) z2×z2÷z4

(9) x3

×x2÷x4

(10) n2

÷n2×n2

2

(11) y3÷y2×y

2

(12) x÷x×x3

## x

3

(13) n2×2n4÷¡−2n2¢

4

(14) ¡

−x4¢×2x÷¡−x4¢

(15) ¡

−8y4¢×¡−y2¢÷4y3

3

(16) ¡

−4a4¢×2a3÷¡−2a2¢

## a

5

(17) ¡

−4n3¢÷¡−n2¢×(−4n)

## n

2

(18) 6x3÷(−3x)×3x2

## x

4

(19) (−12y)÷3y×¡−2y4¢

4

(20) ¡

−a4¢÷2a2×6a4

## a

(11)

(1) 1 6y

2

×3y3 (2) 4

3c

3 ×

³

−6

5c

(3) 5 6n

2 × 3

4n

4

(4) ³−1

3n

7´ ÷ 1

6n

3

(5) ³−1

6b

7´ ÷ 3

2b

3 (6) 4

3a

5 ÷

³

−5

6a

(7) y2×y2÷y (8) b3×b3÷b3

(9) b×b2÷b (10) y÷y×y3

(11) a÷a×a4 (12) z2÷z×z2

(13) 8c×(−2c)÷(−4c) (14) n4×8n÷4n5

(15) ¡

−3c4¢×(−c)÷¡−c5¢ (16) 4m3×m3÷¡−4m2¢

(17) 2y3÷¡−4y3¢×¡−8y2¢ (18) 6y4÷3y×¡−4y3¢

(19) ¡

(12)

(1) 1 6y

2 ×3y3

5

(2) 4 3c

3 ×

³

−6

5c

7

(3) 5 6n

2 × 3

4n

4

6

(4) ³−1

3n

7´ ÷ 1

6n

3

4

(5) ³−1

6b

7´ ÷ 3

2b

3

4

(6) 4 3a

5 ÷

³

−5

6a

3

(7) y2×y2÷y

3

(8) b3×b3÷b3

3

(9) b×b2÷b

2

(10) y÷y×y3

3

(11) a÷a×a4

4

(12) z2÷z×z2

## z

3

(13) 8c×(−2c)÷(−4c)

(14) n4

×8n÷4n5

(15) ¡

−3c4¢×(−c)÷¡−c5¢

(16) 4m3

×m3÷¡−4m2¢

## m

4

(17) 2y3÷¡−4y3¢×¡−8y2¢

## y

2

(18) 6y4÷3y×¡−4y3¢

## y

6

(19) ¡

−2z2¢÷¡−4z2¢×16z4

4

(20) 12a4

÷4a2×¡−2a4¢

## a

(13)

(1) 7 4n

4

×6n4 (2) 5

4x× ³

−2

3 x

(3) 6x2 ×

³

−1

4x

(4) 3

2y

5 ÷

³

−5

4y

(5) 1 6n

8 ÷ 5

3n

4 (6) ³

−5

6n

5´ ÷ 5

2n

2

(7) b3×b2÷b3 (8) b4×b2÷b

(9) b4

×b÷b (10) n4÷n×n4

(11) y÷y×y3 (12) z÷z×z

(13) ¡

−8z3¢×3z÷¡−2z4¢ (14) (−4z)×(−4z)÷(−z)

(15) ¡

−x2¢×¡−16x3¢÷4x4 (16) 8y×4y4÷2y3

(17) 4n4÷4n×(−16n) (18) 3a2÷4a×¡−16a4¢

(19) 12n3

(14)

(1) 7 4n

4 ×6n4

8

(2) 5 4x×

³

−2

3 x

4

(3) 6x2 ×

³

−1

4x

5

(4) 3 2y

5 ÷

³

−5

4y

2

(5) 1 6n

8 ÷ 5

3n

4

4

(6) ³−5

6n

5´ ÷ 5

2n

2

3

(7) b3×b2÷b3

2

(8) b4×b2÷b

5

(9) b4

×b÷b

4

(10) n4

÷n×n4

7

(11) y÷y×y3

3

(12) z÷z×z

(13) ¡

−8z3¢×3z÷¡−2z4¢

## 12

(14) (−4z)×(−4z)÷(−z)

(15) ¡

−x2¢×¡−16x3¢÷4x4

(16) 8y×4y4÷2y3

## y

2

(17) 4n4÷4n×(−16n)

## n

4

(18) 3a2÷4a×¡−16a4¢

5

(19) 12n3

÷4n×(−n)

3

(20) 2m2

÷¡−2m2¢×2m3

## m

(15)

(1) (−6z)×

³

−4

3z

(2) 3

4y× 1 6y

4

(3) 1 6a

3 ×

³

−3

2a

3´ (4) 7

4m

5 ÷ 1

6m

3

(5) 1 6n

3 ÷ 4

3n (6)

³

−1

2b

6´ ÷

³

−5

4b

(7) y4×y2÷y5 (8) x4×x÷x2

(9) x3

×x÷x3 (10) c3÷c3×c3

(11) m÷m×m (12) a÷a×a2

(13) 2b×¡−4b3¢÷¡−b4¢ (14) ¡−x3¢×x÷x4

(15) (−a)×¡−2a3¢÷2a4 (16) ¡−6n2¢×4n2÷3n3

(17) 2x4÷4x2×8x4 (18) 2c2÷c2×2c3

(19) 3x4

(16)

(1) (−6z)×

³

−4

3z

3

(2) 3 4y×

1 6y

4

5

(3) 1 6a

3 ×

³

−3

2a

6

(4) 7 4m

5 ÷ 1

6m

3

2

(5) 1 6n

3 ÷ 4

3n

2

(6) ³−1

2b

6´ ÷

³

−5

4b

4

(7) y4×y2÷y5

(8) x4×x÷x2

3

(9) x3

×x÷x3

(10) c3

÷c3×c3

3

(11) m÷m×m

(12) a÷a×a2

## a

2

(13) 2b×¡−4b3¢÷¡−b4¢

(14) ¡

−x3¢×x÷x4

## 1

(15) (−a)×¡−2a3¢÷2a4

(16) ¡

−6n2¢×4n2÷3n3

(17) 2x4÷4x2×8x4

6

(18) 2c2÷c2×2c3

3

(19) 3x4

÷4x2×¡−8x4¢

## x

6

(20) 4b÷3b×¡−12b4¢

## b

(17)

(1) ³−5

2n ´

×¡−6n3¢ (2) 3

2c

3 × 1

6c

4

(3) ³−1

4m

3´ × 6

5m

2 (4) 1

2x

8 ÷ 7

4x

4

(5) ³−5

6y

5´ ÷

³

−1

3y

(6) ³

−1

6x

6´ ÷

³

−5

3x

(7) n2×n4÷n2 (8) a×a2÷a2

(9) c2

×c2÷c (10) y÷y×y3

(11) a÷a×a3 (12) b÷b×b3

(13) 12z×2z2÷4z (14) 6m4×m÷3m4

(15) (−2y)×(−6y)÷(−3y) (16) 2z2×8z÷4z2

(17) 4x2÷4x×¡−16x3¢ (18) ¡−4b4¢÷¡−2b2¢×(−2b)

(19) ¡

(18)

(1) ³−5

2n ´

×¡−6n3¢

4

(2) 3 2c

3 × 1

6c

4

7

(3) ³−1

4m

3´ × 6

5m

2

5

(4) 1 2x

8 ÷ 7

4x

4

4

(5) ³−5

6y

5´ ÷

³

−1

3y

(6) ³−1

6x

6´ ÷

³

−5

3x

4

(7) n2×n4÷n2

4

(8) a×a2÷a2

(9) c2

×c2÷c

3

(10) y÷y×y3

3

(11) a÷a×a3

3

(12) b÷b×b3

3

(13) 12z×2z2÷4z

2

(14) 6m4

×m÷3m4

## m

(15) (−2y)×(−6y)÷(−3y)

(16) 2z2×8z÷4z2

## z

(17) 4x2÷4x×¡−16x3¢

## x

4

(18) ¡

−4b4¢÷¡−2b2¢×(−2b)

## b

3

(19) ¡

−6z3¢÷(−3z)×¡−2z4¢

## z

6

(20) ¡

−8z2¢÷(−2z)×¡−4z3¢

## z

(19)

(1) 2 3z ×

5 4z

2 (2) 2

3z × ³

−1

6z ´

(3) 6 5n

3 ×

³

−1

4n

(4) ³

−5

6c

7´ ÷ 1

4c

4

(5) ³−5

6c

6´ ÷ 5

3c

4 (6) 5

6c

5 ÷

³

−7

4c

(7) y4×y2÷y4 (8) c×c2÷c3

(9) c4

×c3÷c6 (10) b3÷b3×b

(11) y3÷y×y (12) m÷m×m

(13) (−4y)×¡−2y2¢÷y (14) ¡−4m3¢×(−8m)÷¡−2m2¢

(15) (−4y)×4y÷y (16) ¡−4a2¢×3a3÷(−a)

(17) 9m÷(−3m)×¡−2m4¢ (18) 4a3÷2a×¡−2a4¢

(19) ¡

(20)

(1) 2 3z ×

5 4z

2

3

(2) 2 3z ×

³

−1

6z ´

2

(3) 6 5n

3 ×

³

−1

4n

5

(4) ³−5

6c

7´ ÷ 1

4c

4

3

(5) ³−5

6c

6´ ÷ 5

3c

4

2

(6) 5 6c

5 ÷

³

−7

4c

3

(7) y4×y2÷y4

2

(8) c×c2÷c3

(9) c4

×c3÷c6

(10) b3

÷b3×b

(11) y3÷y×y

3

(12) m÷m×m

## m

(13) (−4y)×¡−2y2¢÷y

## y

2

(14) ¡

−4m3¢×(−8m)÷¡−2m2¢

2

(15) (−4y)×4y÷y

(16) ¡

−4a2¢×3a3÷(−a)

## a

4

(17) 9m÷(−3m)×¡−2m4¢

## m

4

(18) 4a3÷2a×¡−2a4¢

6

(19) ¡

−n3¢÷(−3n)×3n2

## n

4

(20) (−2a)÷2a×¡−4a4¢

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