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RESOURCE MASTER 47 RESOURCE MASTER 51 RESOURCE MASTER 53 RESOURCE MASTER 55

[!]-oo
I
J
[!] Put Q ring around the moat sensible approxImate onswer. [!] !-J?- [!]OO
Then find the octuotonswer on a calculator. a 27 _ 2- tens ().(\d 7ooe,B _ II:ef) and 11 O()~ -
approximate onawers cQlculotor anawerw -~~-­
504- b 55 _ 5 tel15 anQ29~ _ ±te()S OJ1<!.~~.9nas -
600 400700 @ Practical: making a net for a a 200 221 b 200 204
'100 600 8 700 827 c 83 _ S teJ15 ~_~_@~ - IJ:;~l~LqaiJ'?~[lQ!) - ?~­
aDo QOo 8 S00 ( 707 tetrahedron. c 400 418 d 800 787
B 500 600 SOD ( 725 d 76 ~ J~~_~ ~ 6_t€!1;LQrHiJl,-o~ - ~(;~-
e 40 ~ 4-1:::et15 ___ ~ ~~Md IOffil? ~ ~-
bOO
@ 800 700 '100 e 600 5q3 f 700 6qO
'100 700 @ SOO 795 62 ~ ~~ _ ~o..ndl1.00!2-5_ ~~
g 134+2q2 @ 300 500 200 ( 4-26 9 500 4qO
700 400 @ 500 ( 59 '5"
@ 700 aDo 600 ( 8 8 3 Practical: making a net for a
J 114+5Q4 800 8 s00 SOD ( 708 hexahedron. 00
[!) Join together pairs of three-digit number. which will display this
total ~whenodded together:
1I)[)f!)-[)II)@) ~ a 145- 60 = 85 + 60 = 145
f!)@)f!) ~ RESOURCE MASTER 52
@l1fiQ) @) q II) b 252- 40 = 212 + 40 = 252
)#
~Q) ~a Of!) [!] c 375 - 85 = 2qO + 85 = 375
@)QJfU r f1)1!) 2 1I)Q)f1)
d 603 - 403 = 200 + 403 = 603
f!)O[) Q)qQ) ~s oblong triangle circle hexagon
square
3-D shapes e 867 - 347 = 520 + 347 = 867
cube 6 00
cuboid 6 Open. f 500 - 51 = 44q + 51 = 500
'+
tetrahedron 9 750 - 225 = 525 + 225 = 750
RESOURCE MASTER 50 square-based h qqq - 7q7 = 202 + 7q7 = qqq
pyramid I , '+
[!]-~ cylinder 3 2 2- RESOURCE MASTER 54
triangular prism
Practical: constructing cube hexagonal prism 6 2. OJ Work out the answers to these subtractions. ~. f . Use base 10 materials
-=- if you get stuck or you
from net. [!] Afterwards, write more subtractions like these in each region. /""" 4 1 want to check answers.
---."dl~
a hexagonal prism
b cuboid
c cube
84Q Q67 746 216
d square-based pyramid -678 -381 -177 -18Q
ITi l 5<06 569 ~
e triangular prism
f cylinder
9 tetrahedron