I hope you are making good use of the holidays. As promised, here are the answers to the questions that we did not have time to complete discussing. Before I give you, let me remind you on the things that you have to do before you return on Monday:
1) Type your compos and email me if you haven't done so: reena_shukla_prempal_shukal@moe.edu.sg
2) Complete El Mock Paper
3) Complete Maths Paper 2 Set 2
4) File in ALL your worksheets into your English, Maths, Science files. Bring these worksheets back only: All EL and Maths practice papers for SA2 (2 EL that we have discussed and 1 Maths)
See you soon!
Ms Reena
Here are the answers:
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9.
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4 + 5 = 9
180 ÷ 9 = 20
5 × 20 = 100
100 × 2 = 200
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10.
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I will draw with you in class.
Length should be about 10.3cm
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11.
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6 calculators + 2 clocks = $64 ×
2 = $128
1 calculator = $128 - $110 =
$18
3 calculators = $18 × 3 = $54
1 clock = $64 - $54 = $10
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12.
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¼ × ¾ = 3/16 (men)
1 - 3/16 - 1/4 = 9/16 (children)
9u à 48 + (48 ×2) = 144
2u à 144 ÷ 9 = 16
16u à 16 × 16 = 256
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13.
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14.
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58 × 6 = 348
57 × 4 = 228
348 – 228 = 120
120 + 2 = 122
122 ÷ 2 = 61
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15.
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 EFC = 180o – 90o
– 33o = 57o GEC = 180o – 60o
– 60o = 60o FEC = 180o – 92o
– 57o = 31o GEF = 180o – 60o
– 60o – 31o = 29o |
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16.
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80% × $160 = $128
65% × $160 = $104
$128 + $104 = $232
107% × $232 = $248.24
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17.
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10 × 10 × 10 = 1000
1000cm3 = 1000ml
1600 – 1000 = 600
6 × 6 × 25 = 900
900cm3 = 900ml
600 / 900 = 2/3
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18.
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a) 9 + 7 = 16
b) 30 × 30 + 30 × 4 + 4 = 1024
c) 60 × 60 = 3600
60 – 2 = 58
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