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TIMO 2021 Grade 2 Preliminary Set 4

Question 1

According to the pattern shown below, what is the number in the blank (“__”)? 8, 10, 14, 20, 28, 38, __, …

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  1. 48
  2. 49
  3. 50
  4. 51

Question 2

If the day after tomorrow will be Wednesday, which day of the week will 5 days later be?

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  1. Saturday
  2. Tuesday
  3. Wednesday
  4. Thursday

Question 3

30 children form a row. Alice is the 11th starting from the front. What is her position counting form behind?

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  1. 19
  2. 20
  3. 21
  4. 22

Question 4

Alice needs 10 minutes to finish a lap. Then she needs to rest 1 minute. How many minutes does she take to finish 10 laps if she continues her method?

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  1. 100
  2. 109
  3. 110
  4. 90

Question 5

According to the pattern shown below, how many ◎ are there in the 9th group?

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  1. 46
  2. 47
  3. 48
  4. 49

Question 6

Find the value of $1+3+5+7+9+11+13+15$.

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  1. 64
  2. 65
  3. 66
  4. 67

Question 7

Find the value of 3×$3+6$×$2+9$×$1+18$×2.

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  1. 63
  2. 64
  3. 65
  4. 66

Question 9

What is the number that should be filled in the blank if the equation below is correct? ____ ÷ $3+13=28$

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  1. 15
  2. 75
  3. 17
  4. 45

Question 10

Refer to the puzzle on the right, find the value of B. A + AB = 91

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  1. 3
  2. 4
  3. 5
  4. 6

Question 11

Alice has 31 pencils and Peter has 92 pencils. How many pencils does Alice have to ask Peter to give her to make Peter has 11 less pencils than Alice?

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  1. 32
  2. 34
  3. 36
  4. 38

Question 12

15 students have even number of scores of mathematics test in total. 7 children have odd number of scores and 3 children has even number of scores. Determine the sum of scores of the remaining children is odd or even.

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  1. Odd
  2. Even
  3. Both odd and even
  4. Neither odd nor even

Question 13

The numbers below follow the arithmetic sequence. What is the 9th number? 198, 187, 176, 165, 154, …

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  1. 108
  2. 109
  3. 110
  4. 111

Question 14

How many 3-digit numbers having the units digit that is smaller than 5 are there?

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  1. 14
  2. 50
  3. 450
  4. 45

Question 15

Fill the lines with ‘+’ and ‘×’ to make the equation below correct. 1 __ 1 __ 4 __ 4 __ $5=23$

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  1. $1+1$×4×$4+5=23$
  2. $1+1+4$×$4+5=23$
  3. $1+1+4$×4×$5=23$
  4. $1+1$×4×4×$5=23$

Question 16

How many squares are there in the figure below?

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  1. 10
  2. 11
  3. 12
  4. 13

Question 17

How many vertices do two distinct triangles have?

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  1. 4
  2. 8
  3. 3
  4. 6

Question 18

By observing the pattern, what is the missing figure? ■, ▲, ★, ●, ■, ▲, ★, ●, ■, ?, ★, ●

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  1. ★
  2. ▲
  3. ■
  4. ●

Question 19

At least how many squares can be seen if viewing the figure below from the top?

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  1. 6
  2. 7
  3. 8
  4. 9

Question 20

At most how many lines can be formed by using 6 points on a plane?

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  1. 15
  2. 14
  3. 13
  4. 12