Question
x + x + x + x

Answer 4 x

Question
b + b + b + b

Answer 4 b

Question
h + h

Answer 2h

Question
d + d + d

Answer 3d

Question
y + y

Answer 2y

Question
j + j

Answer 2 j

Question
8 x + x

Answer 9x

Question
9 b − b

Answer 8b

Question
6 e − 4 e

Answer 2e

Question
5 a + 10 a

Answer 15a

Question
8 s + s

Answer 9s

Question
9 y − 4 y

Answer 5y

Question
10 p + p − 2 p

Answer 9 p

Question
2 g − 2 g + 6 g

Answer 6 g

Question
7 h + h − 3 h

Answer 5h

Question
p + 8 p + 2 p

Answer 11 p

Question
6 x + 7 x + 4 x

Answer 17x

Question
2 y − 2 y + 10 y

Answer 10 y

Question
6 x + 6 y − 4 x − 4 y

Answer 2 x + 2 y

Question
8 a − 3 a + 8 b − 3 b

Answer 5 a + 5 b

Question
4 p + 7 q + 9 p + 3 q

Answer 13 p + 10 q

Question
9 r − 2 r − 4 s + 6 s

Answer 7 r + 2 s

Question
a + 3 b − 3 a + 6 b − 8 a + b

Answer 10 b − 10 a

Question
9 x − 4 y − 4 x − 6 y + x − y

Answer 6 x − 11 y

Question
x − 4 y − 3 x + 7 y − 8 x − 3 z

Answer 3 y − 10 x − 3 z

Question
x × x

Answer x 2

Question
a × 8

Answer 8a

Question
d × c

Answer cd

Question
p × p

Answer p 2

Question
s × s

Answer s 2

Question
7 × m

Answer 7 m

Question
a × b × 4

Answer 4 a b

Question
5 × e × e

Answer 5 e 2

Question
c × 5 × c

Answer 5 c 2

Question
j × j × 5

Answer 5 j 2

Question
4 × a × 4

Answer 16 a

Question
x × y × 5

Answer 5 x y

Question
2 a × 3 a

Answer 6 a 2

Question
2 c × 2 c

Answer 4 c 2

Question
2 e × 4 e

Answer 8 e 2

Question
2 g × 4 h

Answer 8 g h

Question
3 m × 5 n

Answer 15 m n

Question
5 s × 2 t

Answer 10 s t

Question
8 s t × 4 s

Answer 32 s 2 t

Question
5 g h × 3 g h

Answer 15 g 2 h 2

Question
10 a b × 2 b

Answer 20 a b 2

Question
2 x y × 4 y

Answer 8 x y 2

Question
6 e f × 3 f

Answer 18 e f 2

Question
5 c × 3 c d

Answer 15 c 2 d

Question
9 a b c × 3 a b c

Answer 27 a 2 b 2 c 2

Question
9 x y z × 2 x y z

Answer 18 x 2 y 2 z 2

Question
10 b × 10 a b c

Answer 100 a b 2 c

Question
3 z × 5 x y z

Answer 15 x y z 2

Question
7 a b c × 10 a b

Answer 70 a 2 b 2 c

Question
2 x y z × 7 x z

Answer 14 x 2 y z 2