Page 86 - 01-Yr5_Front cover-ccp.indd

87

RESOURCE MASTER 43 RESOURCE MASTER 44 RESOURCE MASTER 46

827 - 358 = 45q Incorrect (46q)
ITJ 18% - 747 = 1148 Correct Practical: choose materials
to construct a net with tabs
776 - 365 = 4 11 Correct for a triangular prism.
36 30 24 IS 115 100 S5 70 131 110 sq 6S 506 - 167 = 34q Incorrect (33q)
31 25 1q 13 104 sq 74 5q 122 IOI so 5q 505q - 2331 = 2628 Incorrect (2728)
%·05 - 18·q = 76·05 Incorrect (76· 15)
26 20 14 s q3 7S 63 4S 113 q2 71 50
1 02· 1 - 56-7 = 45·4 Correct
21 15 q 3 S2 67 52 37 104 S3 62 41 451 2 - 1 246 = 326q Correct

RESOURCE MASTER 48 RESOURCE MASTER 4q

Three possible solutions: ITJ a 4·5 x 10 = 45
b 131 x10 = 1310
xlO x 100 x 1000
% sq S2 75 % SS so 72 qs q2 SS S4 c 36·8 x 10 = 368
10 100 1 000 10 000
S7 so 73 66 SS so 72 64 S4 so 76 72 d 1 .q7 x 1 0 = 1 q. 7
60 600 6 000 60 000
7S 73 64 57 so 72 64 56 72 6S 64 60
500 5 000 50 000 500 000
sq 62 55 4S 72 64 56 4S 60 56 52 4S qo ooo e 85 x 1 00 = 8500
qoo q 000 qoo ooo
f 7.q x 1oo= 1qo
1 000 10 000 100 000 1 000 000
3 000 30 000 300 000 3 000 000 g 506-3 x 1 00 = 50 630
10 000 100 000 1 000 000 10 000 000 h 1 0· 15 x 1 00 = 1 01 5
80 000 800 000 8 000 000 80 000 000
3 x 1000 = 3000
+11 +q +7 +5 +12 +q +5 +3 +25 +15 +7 -2
0· 17 x 1 000 = 170
+s +5 +4 +2 +5 +2 -1 -4 +17 +s -1 -10
k 8-q x 1000 = 8qoo
+5 +3 +1 -1 -2 -5 -s -11 +q 0 -q -1s +10 + 100 + 1000
+2 0 -2 -4 -q -12 -15 -is +1 -s -17 -25 1 000 100 10 1 I 7·05 x 1000 = 7050
6 000 600 60 6
10 000 1 000 100 10
30 000 3 000 300 30
100 000 10 000 1 000 100
80 000 80 000 8 000 800
1 000 000 100 000 10 000 1 000
7 000 000 700 000 70 000 7 000