Page 122 - steps 3b.pdf

• Answers 3b • • • • • • • • • • • • • • • • • 5

DRM 76 DRM83
1 The patterns should have this layout: 80 - 50 = 30 2 Open
160 - 40 = 120
100 - 10 = qO
200 - 120 = 80
IqO - 110 = 80
170 - 50 = 120
IqO-130=60
180 - 60 = 120
200 - 170 = 30
2 The patterns should have this layout: 150 - 120 = 30
200 - 80 = 120
140 - 50 = qO
DRMs84,85
Open
DRM86
1;1; ;I~I ; ~I l* 1 ; 1 ; 1;1~1 I; I;I;I ; I ; I-~l
DRM 77
Open
1;1; ;1;1; ~ I 1;1;1;1;1;[;] I;I;I ; I~I ; I ~ I
DRM 78
1;1; ;1;1;;1 1;1;1;1;1;1;1 [2;1;1;1;1;1 e
Grid 2 should have this layout:
START Grid 2

DRM87
Open

DRM88
1-4 open
5 a b c
lOami 220ml
400ml
QOml 200ml
350ml
80ml 180ml
300ml 160ml
70ml
140ml
250ml 60ml
120ml
200ml 50ml
lOami
40ml
150ml 80ml
30ml
IOOml GOml
DRM 7q 20ml 40ml
50ml
The answer is I: 2 .;. 2; 10 .;. 10; 5 .;. 5 IOml 20ml
The answer is 2: 10.;. 5; 4.;. 2; 20.;. 10
The answer is 3: 15.;. 5; 30.;. 10; 6.;. 2 DRM 8q
The answer is 4: 40.;. 10; 8.;. 2; 20.;. 5 amount number of containers
The answer is 5: 10.;. 2; 50.;. 10; 25.;. 5 containers used chosen
The answer is 6: 12.;. 2; 60.;. 10; 30.;. 5 320ml 4 C,B,A,A
The answer is 7: 35.;. 5; 14.;. 2; 70.;. 10 360ml 4 C,B,B,A
The answer is 8: 40.;. 5; 16.;. 2; 80.;. 10 170ml 5 B,B,B,A,A
The answer is q: 18.;. 2; qO.;. 10; 610ml 5 C,C,B,B,A
430ml 7 C,B,B,B, A,A,A
DRMs 80, 81
2 One possible solution: Pour 50 ml of water into container
Open
B (leaving 200 ml in container C). Pour 10 ml of water into
container A (leaving I qO ml in container C). Pour away the
DRM82
10 ml of water from container A. Repeat the last two
1 a 3; 13 b 14;4 c I; II
stages (leaving 180 ml in container C.)
d 5;15 e 0; 10 f 18; 8
9 14;4 h 6; 16 20;20
DRMQO
j 2; 12; 2 k 0; 10; 0 3; 13; 3
a Pour 50 ml into B. Pour away the water in B and repeat.
m I; 14; 14 n 2; 16; 16 o 5; 15; II
b Pour water from 0 into A. Pour water from 0 into B.
Pour water from 0 into C.
c Pour water from 0 into B. Pour away water from B.
Pour water from 0 into A. Pour away water in A. Repeat
last two stages. ..
d Pour water from 0 into B. Pour away water from B. _
Repeat last two stages. Pour water from 0 to A. Pour
away water from A. Repeat the last two stages twice
more.
© HarperCollinsPublishers Ltd 1997 STEPS 3b Differentiation Pack