Answer Key for Primary Mathematics 2B Placement Test
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1.
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(a) 72
(b) 14
(c) 29
(d) 48
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2.
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(a) 58
(b) 37
(c) 78
(d) 43
(e) 51
(f) 150
(g) 123
(h) 743
(i) 845
(j) 900
(k) 835
(l) 96
(m) 136
(n) 144
(o) 582
(p) 756
(q) 403
(r) 380
(s) 353
(t) 71
(u) 102
(v) 701
(w) 613
(x) 223
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3.
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$354
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4.
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(a) 47
(b) 173
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5.
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(a) 80
(b) 25
(c) 24
(d) 60
(e) 9
(f) 7
(g) 35
(h) 5
(i) 9
(j) 7
(k) 32
(l) 5
(m) 40
(n) 10
(o) 50
(p) 100
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6.
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20
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7.
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8
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8.
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$6
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9.
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$40
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*10.
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(a) 21 kg
(b) 27 kg
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11.
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(a) 79
(b) 115
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12.
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(a) 0.14
(b) 795
(c) 2.03
(d) 8
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13.
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(a) $7.50
(b) $9.45
(c) $2.60
(d) $3.30
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14.
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(a) 6.93
(b) 4.65
(c) 3.00
(d) 1.90
(e) 8.90
(f) 4.75
(g) 7.14
(h) 7.23
(i) 9.30
(j) 5.60
(k) 4.05
(l) 3.45
(m) 2.45
(n) 5.95
(o) 2.25
(p) 2.45
(q) 2.50
(r) 3.45
(s) 1.01
(t) 3.35
(u) 3.60
(v) 1.05
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15.
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(a) 5
(b) $2.05
(c) $3.00
(d) $10.25
(e) $5.05
*(f) $0.10
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16.
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(a) 
(b) 
(c) 
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17.
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(a) 
(b) 
(c)
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18.
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19.
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(a) 20; 11
(b) 1:50; 10; 2
(c) 4:05; 5; 4
(d) 4:45; 15; 5
(e) 3:00
(f) 10:10 a.m.
(g) 11:05 a.m.
(h) 1:30 p.m.
(i) 50
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| *20. |
(a) false
(b) true
(b) true |
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*21.
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(a) 280 gallons
(b) 24 gallons
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21.
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32 liters
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*23.
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6
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24.
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(a) 32
(b) 12
(c) 4
(d) 2
(e) 6
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25.
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(a) A, E, F
(b) C
(c) B, D, G
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26.
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(a) 1; 1
(b) 5; 0
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27.
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(a)
(b)
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28.
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(a)
(b)
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29.
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(a) 12
(b) 10
(c) A
(d) 2
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* Note: Starred problems pertain only to Primary Mathematics US edition.
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