This preview shows page 1. Sign up to view the full content.
Unformatted text preview: = a4×3
= a 12 42 MEP Y9 Practice Book A Exercises
1. Copy each of the following statements and fill in the missing numbers:
(a) (b) 36 × 35= 3 (c) 37÷ 34 = 3 (d) 83× 84 = 8 (e) (3 ) (f) (2 ) (g) 2. 23 × 2 7 = 2 36
=3
32 (h) 47
=4
42 2 5 =3 3 6 =2 Copy each of the following statements and fill in the missing numbers:
(a) a3× a2= a (b) b7÷ b2= b (c) (b ) =b (d) b6× b4= b (e) (z 3 ) = z (f) q 16
=q
q7 2 5 9 3. Explain why 9 4 = 3 8 . 4. Calculate:
(a) (b) 60× 70 (c)
5. 30 + 40
80 − 30 (d) 60+ 20− 40 Copy each of the following statements and fill in the missing numbers:
(a)
(c) 36 × 3 = 3 17 a6 (b)
(d) (z ) (f) p 16 ÷ p (h) = a4 46× 4 q 13 ÷ q 6 = 4 11
= z 18 a
(e) (a ) (g) (p = a 95 19 ) 8 = p 40 43 = p7
=q MEP Y9 Practice Book A 3.2
6. Calculate:
(a) (b) 34
− 30
3
3 (c) 54 62
+
52
6 (d) 77 59
−
75 57 (e) 7. 23
+ 30
2
2 10 8 5 6
−
10 5 5 3 (f) 4 17 4 13
−
4 14 4 11 Fill in the missing numbers in each of the following expressions:
(a) (b) 81 3 = 9 (c) 25 6 = 5 (d) 47= 2 (e) 125 4 = 5 (f) 1000 6 = 10 (g) 8. 82= 2 81 = (h) 256 = 4 4 = 8 Fill in the missing numbers in each of the following expressions:
(a) 8×4 = 2 ×2 (b) 25 × 625 = 5 =2 (c) =5 3
243
=
9
3 (d) 2
128
=
16
2 =3
9. =3 =2 Is each of the following statements true or false?
(a) 32 × 22 = 64 (b) 5 4 × 2 3 = 10 7 (c) 68
= 38
28 (d) 10 8
= 22
56 44 ×5 MEP Y9 Practice Book A 10. Copy and complete each expression:
(a) (2 4 (c) 23× 24 27 62 × 68 63 4 (e) 6 × 2 3) 4 = (2 = (2
= )4 ) (6 4 (b) =2 )4 =6 36 5 2 =
3 (d) =2 3 2 × 9 33 (f) 78 2 7 × 73 (3
4 )5
(3 =
5 = (7 =3 )4
)5 =3 =7 3.3 Negative Indices
Using negative indices produces fractions. In this section we practice working
with negative indices. From our work in the last section, we see that a2÷ a3 = a2−3 a2÷ a3 = a×a
a×a×a = a −1 but we know that So clearly, a −1 = 1
a a −2 = 1
a2 = 1
a×a = 1
a3 = 1
a×a×a In same way, a −3 45 = 1
, a fraction.
a 3.3 MEP Y9 Practice Book A and, in general, a −n = 1
an for positive...
View
Full
Document
This document was uploaded on 03/03/2014 for the course OLEVEL Mathematic at Beaconhouse School System.
 Fall '13
 Zeeshan

Click to edit the document details