G6 Math Olympiad Part A

Calculate the sum: 1 + 3 + 5 + ⋯ + 97 + 99.

• 2500

• 2200

• 5050

• 2350

• 4950

Laura decorated each of her 24 cookies. She decorated 15 cookies with green colour and 13 cookies with blue colour. How many cookies were decorated with both green and blue colour?

• 4

• 3

• 5

• 6

• 2

The letters in the word MATHEMATICIAN were put in a box. What is the chance of getting letter A?

• 1. 3 out of 9

• 1. 3 out of 10

• 1. 3 out of 13

• 1. 1 out of 11

• 1. 3 out of 11

What fraction of the square is shaded if the line inside divides the square into two equal parts?

• 768

• 448

• 549

• 1224

• 1600

Cindy saved $15 in the first month, $30 in the second month, $45 in the third month, and so forth. The amount of money she saved in the last month was $120. How much money did Cindy save in total?

• 210

• 300

• 350

• 420

• 540

There are 37 numbers on a roulette wheel: 0 and the whole numbers from 1 to 36. What is the chance of getting a prime number?

• 10 out of 37

• 11 out of 37

• 12 out of 37

• 11 out of 38

• 12 out of 38

• 1

• 2

• 3

• 4

• Cannot be determined

Harry and Terry are each told to calculate 8 − (2 + 5). Harry gets the correct answer. Terry ignores the parentheses and calculates 8 − 2 + 5. If Harry's answer is 𝐻 and Terry's answer is 𝑇, what is the value of 𝐻 − 𝑇?

• -10

• -6

• 0

• 6

• 10