Test: Algebraic expressions I - Ambitious

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Question 1:   Multiply: 1 3 a×1 5 7 b
4 7 ab
4 7 a
1 5 21 ab
5 21 ab
Question 2:   If formula ρ= m V find m
m= ρ 2 V
m=ρV
m= V ρ
m= ρ V
Question 3:   Simplify: 3 a -7 × 1 3 a 5
a 12
3 a 5
3a
a -2
Question 4:   Subtract: 17m5dm-3m7cm
14m43cm
14m43dm
14m2dm
14m2cm
Question 5:   Multiply: ( 3x-1 )( 9 x 2 +3x+1 )
27 x 3 -1
27 x 3
9 x 2 -1
9 x 3 -1
Question 6:   Find 66% of 385
2.541
25.41
254.1
2541
Question 7:   Rewrite in fraction form: ( 5 a -5 c ) -1
5 a 2 c
1 5ac
a 5 5c
5 ac
Question 8:   Reduce: c 2 -3 c- 3
c- 3
c 2 -3
c 2 - 3
c+ 3
Question 9:   Determine value of x for which expression 9x+2 is two times larger from 3x+4
x=-2
x=1
x=-1
x=2
Question 10:   Multiply: a 2 - c 2 a 2 +ac × 2a c-a
2c
2
2a
-2