PMR Question Module Chapter 2 Form 2 2011
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Mathematics : Squares, Square Roots, Cubes and Cube Roots
PMR questions. questions. 1. (a) (a) Fin Find d the the val value ue of of =
3
3
4. (a) (a) Fin Find d the the valu value e of of −4
.
0.512
=
⎛ 1 ⎜2 × ⎝ 1
=
(3)
=
27
3
1000 8
=
10 0.8
(b) Calculate the value of 8 =
=
⎛ ×⎜− ⎝
16
3 21
4
2
27 ×
3
−
.
8
⎞ ⎟ ⎠ ⎛ − 1 ⎞ ⎜ 4 ⎟ ⎝ ⎠
.
64
(b) Calculate the value of (4.2 ÷ 3)
=
(1.4)
=
÷
3
0.49
=
(7)
=
49
(
81
)
2
75
b)
8
c)
=
32
×
50
10 0.7
⎛ 5 − 1⎞ ⎜ 4 ⎟ ⎝ ⎠
e)
=
3
⎞ 25 − 1⎟ 16 ⎠
=
f)
3
⎛ 5 − 4 ⎞ ⎜ 4 4 ⎟ ⎝ ⎠
=
⎛ 1 ⎞ ⎜ 4 ⎟ ⎝ ⎠
g)
256
=
25
50
⎛ − 7 ⎞ ⎜ 3 ⎟ ⎝ ⎠
=
3
−
1000
=
3
−
1000 2
=
⎛ − 9 ⎞ ⎜ 2 ⎟ ⎝ ⎠
=
9
5
4 9
4 =
−
=
−
10
=
−0.4
=
−0.9
9 10
81 =
4
16
5
49 =
=
3 =
729
⎛ −4 1 ⎞ ⎜ 2 ⎟ ⎝ ⎠
5
64
−0.064 −0.729
2 =
9 =
2
2
=
8 × 32
3 dp
.
25
75
18
25
3 dp
3
4 =
=
9
⎛ −2 1 ⎞ ⎜ 3 ⎟ ⎝ ⎠ 3
12
25
2
d)
3
4
18
100
64
2
16 −
2
12
.
0.49
1
3
(16 − 9)
a)
3
=
.
27
Module questions. 1. Find Find the the val value ue of. of... ..
1.96
⎛ (b) Calculate the value of ⎜ ⎝ =
−
.
7
=
1 3
2
)
27
49
=
−
=
2 dp
=
3
2
3. (a) (a) Fin Find d the the val value ue of of =
( 4.2
2
=
3
(b) Calculate the value of
1
−
.
1 =
−24
2. (a) (a) Fin Find d the the val value ue of of
⎞ 36 ⎟ ⎠
⎞ 3 6 ⎟ ⎠
5. (a) (a) Fin Find d the the valu value e of of
3
=
3
⎛ 1 (b) Calculate the value of ⎜ × ⎝ 2
0.512 512
=
−64 .
=
3 dp
=
3
=
20
1 4
.
PMR Question Module Chapter 2 Form 2 2011
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Mathematics : Squares, Square Roots, Cubes and Cube Roots
2. Calcul Calculate ate the value value of... of... 2
a)
⎛ − 3 ⎞ ⎜ 4 ⎟ ⎝ ⎠
e)
4
6
343
2
×
256 18
1
9 ÷ 3
16
64
9 =
16
256
=
f)
64
1 − 0.6
2
=
÷
4 1
×
1
16
=
0.8 ÷
=
0.8 ÷
=
=
0.0004
+
2
−125 + ( 0.3)
3
g)
4 3
0.2
3
0.8
×
41
0.6 7
2
9
− 3 −3
3 8
2
0.00 04
=
=
c)
+
⎛ ⎞ −125 + ⎜ 0. 3 ⎟ ⎝ 1dp⎠
3
2 dp
2 dp
=
0.02 − 5 + 0.09
=
0.11 − 5
=
−4.89
( −2 )
=
3
1 − 0.6
+
=
−8 +
1 − 0.36
=
−8 +
0.64
⎛ ⎜ ⎝
3
⎞ 144 × ⎟ 2 ⎠ 1
=
⎛ 6 ⎜ 12 × ⎝
=
(6)
=
216
3
3
1 ⎞ ⎟ 21 ⎠
9
− ⎛ − ⎞ ⎜ ⎟ 3 ⎝ 2 ⎠ 3
5 ×2 3×2
+
3×3 2 ×3
10 + 9 6 19
=
27
3
2
=
−8 + 0.8 = −7.2
− −
5 =
=
=
d)
25 =
0.02 + (−5) + 0.09
⎞ ⎟ ⎠
6 3
1 6
7 9
9
1 4
b)
1
16
4
4 2
21
÷
9 =
7
−126
3
9 4
4
⎛ 36 × ⎜ − ⎝
1
16
=
8
1 ÷
9 =
−
3
÷
=
=
3
8
