2023 MATH Olympiad [Grade1] 2023 MATH Olympiad [Grade2]
No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer
1 Ⓑ 11 Ⓐ 21 Ⓓ 31 41 1 Ⓒ 11 Ⓒ 21 Ⓒ 31 41
2 Ⓐ 12 Ⓑ 22 Ⓔ 32 42
2 Ⓑ 12 Ⓐ 22 Ⓔ 32 42
3 Ⓓ 13 Ⓑ 23 Ⓐ 33 43
3 Ⓒ 13 Ⓒ 23 Ⓒ 33 43
4 Ⓐ 14 Ⓐ 24 Ⓓ 34 44
4 Ⓔ 14 Ⓒ 24 Ⓐ 34 44
5 Ⓓ 15 Ⓔ 25 Ⓐ 35 45
5 Ⓓ 15 Ⓐ 25 Ⓔ 35 45
6 Ⓓ 16 Ⓑ 26 Ⓓ 36 46 Ⓑ
6 Ⓔ 16 Ⓑ 26 Ⓒ 36 46 Ⓓ 7 Ⓑ 17 Ⓒ 27 Ⓔ 37 47 Ⓐ
7 Ⓓ 17 Ⓓ 27 Ⓓ 37 47 Ⓑ 8 Ⓒ 18 Ⓓ 28 Ⓐ 38 48 Ⓐ
8 Ⓔ 18 Ⓑ 28 Ⓓ 38 48 Ⓒ 9 Ⓔ 19 Ⓔ 29 Ⓑ 39 49 Ⓓ
10 Ⓒ 20 Ⓒ 30 Ⓔ 40 50 Ⓓ
9 Ⓒ 19 Ⓐ 29 Ⓑ 39 49 Ⓐ
10 Ⓒ 20 Ⓑ 30 Ⓓ 40 50 Ⓒ 【Sol】
41. 45. The relationship between A , B is
【Sol】 43. A B.
41. So the missing number is
.
cylinder-shaped figures 42.
44. A B 50. blocks,
A B
ball-shaped figures blocks,
45.
42. 43.
blocks,
47.
49. The figure appears repeatedly in blocks
circles and squares.
Follow the rules in white, 44. The number added repeatedly is
black, white, black, ⋯ .
A
, 2023 MATH Olympiad [Grade3] 2023 MATH Olympiad [Grade4]
No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer
1 Ⓐ 11 Ⓒ 21 Ⓒ 31 41 1 Ⓓ 11 Ⓒ 21 Ⓒ 31 41
2 Ⓔ 12 Ⓑ 22 Ⓐ 32 42 2 Ⓒ 12 Ⓑ 22 Ⓐ 32 42
3 Ⓒ 13 Ⓓ 23 Ⓔ 33 43 3 Ⓔ 13 Ⓒ 23 Ⓓ 33 43
4 Ⓓ 14 Ⓐ 24 Ⓓ 34 44 4 Ⓔ 14 Ⓓ 24 Ⓑ 34 44
5 Ⓒ 15 Ⓒ 25 Ⓑ 35 45 5 Ⓐ 15 Ⓐ 25 Ⓔ 35 45
6 Ⓑ 16 Ⓔ 26 Ⓑ 36 46 6 Ⓑ 16 Ⓓ 26 Ⓐ 36 46
7 Ⓔ 17 Ⓒ 27 Ⓔ 37 47 7 Ⓐ 17 Ⓔ 27 Ⓓ 37 47
8 Ⓑ 18 Ⓔ 28 Ⓑ 38 48 Ⓒ
8 Ⓑ 18 Ⓑ 28 Ⓒ 38 48 Ⓑ
9 Ⓐ 19 Ⓑ 29 Ⓓ 39 49 Ⓒ
9 Ⓒ 19 Ⓐ 29 Ⓓ 39 49 Ⓓ
10 Ⓑ 20 Ⓓ 30 Ⓑ 40 50 Ⓐ
10 Ⓓ 20 Ⓔ 30 Ⓑ 40 50 Ⓒ
【Sol】 →
【Sol】 45. ,
41. , , ,
→ 41. , ,
Each can contain a number
→ ,
from to . ,
→
× ★
→
42. blocks were used on the first → 46. perimeter of the star-shaped
floor, on the second floor, and → ornament ×
42. apples × pears pears
on the third floor. ÷
pears × tangerines
tangerines
47. Example 47.
43. one side ÷
43. Even if the month has either
both side ×
days or days, the last
Wednesday is always th. 49. Ⓐ Ⓑ Ⓒ
44. □ , △ or □ , △
Ⓓ
48. The number of squares of the
example 50. Total
45. , points points point points
Ⓐ Ⓑ Ⓒ Ⓓ
,
,
49. Ⓐ triangle, 3 squares
★ Ⓑ 5 triangles, 4 squares
Ⓒ 7 triangles, 7 squares 44. The relationship between A , B ,
and C is A B C .
46. → Ⓓ 10 triangles, 9 squares
So the missing number is .
or
→
No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer
1 Ⓑ 11 Ⓐ 21 Ⓓ 31 41 1 Ⓒ 11 Ⓒ 21 Ⓒ 31 41
2 Ⓐ 12 Ⓑ 22 Ⓔ 32 42
2 Ⓑ 12 Ⓐ 22 Ⓔ 32 42
3 Ⓓ 13 Ⓑ 23 Ⓐ 33 43
3 Ⓒ 13 Ⓒ 23 Ⓒ 33 43
4 Ⓐ 14 Ⓐ 24 Ⓓ 34 44
4 Ⓔ 14 Ⓒ 24 Ⓐ 34 44
5 Ⓓ 15 Ⓔ 25 Ⓐ 35 45
5 Ⓓ 15 Ⓐ 25 Ⓔ 35 45
6 Ⓓ 16 Ⓑ 26 Ⓓ 36 46 Ⓑ
6 Ⓔ 16 Ⓑ 26 Ⓒ 36 46 Ⓓ 7 Ⓑ 17 Ⓒ 27 Ⓔ 37 47 Ⓐ
7 Ⓓ 17 Ⓓ 27 Ⓓ 37 47 Ⓑ 8 Ⓒ 18 Ⓓ 28 Ⓐ 38 48 Ⓐ
8 Ⓔ 18 Ⓑ 28 Ⓓ 38 48 Ⓒ 9 Ⓔ 19 Ⓔ 29 Ⓑ 39 49 Ⓓ
10 Ⓒ 20 Ⓒ 30 Ⓔ 40 50 Ⓓ
9 Ⓒ 19 Ⓐ 29 Ⓑ 39 49 Ⓐ
10 Ⓒ 20 Ⓑ 30 Ⓓ 40 50 Ⓒ 【Sol】
41. 45. The relationship between A , B is
【Sol】 43. A B.
41. So the missing number is
.
cylinder-shaped figures 42.
44. A B 50. blocks,
A B
ball-shaped figures blocks,
45.
42. 43.
blocks,
47.
49. The figure appears repeatedly in blocks
circles and squares.
Follow the rules in white, 44. The number added repeatedly is
black, white, black, ⋯ .
A
, 2023 MATH Olympiad [Grade3] 2023 MATH Olympiad [Grade4]
No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer No. Answer
1 Ⓐ 11 Ⓒ 21 Ⓒ 31 41 1 Ⓓ 11 Ⓒ 21 Ⓒ 31 41
2 Ⓔ 12 Ⓑ 22 Ⓐ 32 42 2 Ⓒ 12 Ⓑ 22 Ⓐ 32 42
3 Ⓒ 13 Ⓓ 23 Ⓔ 33 43 3 Ⓔ 13 Ⓒ 23 Ⓓ 33 43
4 Ⓓ 14 Ⓐ 24 Ⓓ 34 44 4 Ⓔ 14 Ⓓ 24 Ⓑ 34 44
5 Ⓒ 15 Ⓒ 25 Ⓑ 35 45 5 Ⓐ 15 Ⓐ 25 Ⓔ 35 45
6 Ⓑ 16 Ⓔ 26 Ⓑ 36 46 6 Ⓑ 16 Ⓓ 26 Ⓐ 36 46
7 Ⓔ 17 Ⓒ 27 Ⓔ 37 47 7 Ⓐ 17 Ⓔ 27 Ⓓ 37 47
8 Ⓑ 18 Ⓔ 28 Ⓑ 38 48 Ⓒ
8 Ⓑ 18 Ⓑ 28 Ⓒ 38 48 Ⓑ
9 Ⓐ 19 Ⓑ 29 Ⓓ 39 49 Ⓒ
9 Ⓒ 19 Ⓐ 29 Ⓓ 39 49 Ⓓ
10 Ⓑ 20 Ⓓ 30 Ⓑ 40 50 Ⓐ
10 Ⓓ 20 Ⓔ 30 Ⓑ 40 50 Ⓒ
【Sol】 →
【Sol】 45. ,
41. , , ,
→ 41. , ,
Each can contain a number
→ ,
from to . ,
→
× ★
→
42. blocks were used on the first → 46. perimeter of the star-shaped
floor, on the second floor, and → ornament ×
42. apples × pears pears
on the third floor. ÷
pears × tangerines
tangerines
47. Example 47.
43. one side ÷
43. Even if the month has either
both side ×
days or days, the last
Wednesday is always th. 49. Ⓐ Ⓑ Ⓒ
44. □ , △ or □ , △
Ⓓ
48. The number of squares of the
example 50. Total
45. , points points point points
Ⓐ Ⓑ Ⓒ Ⓓ
,
,
49. Ⓐ triangle, 3 squares
★ Ⓑ 5 triangles, 4 squares
Ⓒ 7 triangles, 7 squares 44. The relationship between A , B ,
and C is A B C .
46. → Ⓓ 10 triangles, 9 squares
So the missing number is .
or
→
