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 V
m= V ρ
m= ρ 2 V
m=ρV
Question 3:   Simplify: 3 a -7 × 1 3 a 5
3 a 5
a 12
3a
a -2
Question 4:   Subtract: 17m5dm-3m7cm
14m2dm
14m43dm
14m43cm
14m2cm
Question 5:   Multiply: ( 3x-1 )( 9 x 2 +3x+1 )
9 x 3 -1
27 x 3
9 x 2 -1
27 x 3 -1
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