Test: Algebraic expressions II - Normal

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Question 1:   Multiply   2 5 ×10a
25a
4a
20a
a
Question 2:   Divide the fractions   a 2 : a 2 6
a 3
3 a
3a
a 3 12
Question 3:   Expand the brackets   a+0.3 5b
5ab+1.5b
5ab+0.3
5ab+15b
a+1.5b
Question 4:   Subtract   18m6cm3m7cm
14m99cm
14m
14m1cm
15m1cm
Question 5:   Factorise   25 a 2
(20a)(5a)
(5a)(5+a)
(20a)(5+a)
(10a)(10+a)
Question 6:   Multiply   0.25 a 3 b 2 ×4a
10ab
100 a 4 b 2
10a
a 4 b 2
Question 7:   Simplify the expression   16a 81a +3 a
2
2 a
62a
2 a
Question 8:   Calculate   7a+ 2a  , when   a=2 :
9 2
16
16 2
9
Question 9:   Simplify the expression   0.4(a2)+0.8
0.4a
0.8a
0.8
0.4
Question 10:   Simplify:   10y5 5y
y1 y
5y
10y
2y1 y