Math Olympiad Challenge

Solve the following addition problem: 345 + 678 = ?

• 1013

• 1023

• 1123

• 1014

Calculate the result of the subtraction: 987 - 456 = ?

• 123

• 654

• 789

• 531

What is the product of 23 and 45?

• 1035

• 1040

• 1036

• 1034

Find the quotient of 144 ÷ 12.

• 14

• 16

• 10

• 12

A store had 350 apples. If they sold 125 apples, how many apples are left?

• 225

• 150

• 100

• 75

In a school, there are 560 students. If 230 students are girls, how many boys are there?

• 430

• 150

• 230

• 330

If a book costs $25 and a pen costs $5, how much will 7 books and 3 pens cost together?

• $180

• $235

• $190

• $210

A farmer harvested 840 potatoes. He sold 360 potatoes. How many potatoes does he have now?

• 560

• 480

• 720

• 640

If a car travels at a speed of 60 km/h, how far will it travel in 5 hours?

• 300 km

• 250 km

• 200 km

• 350 km

A baker baked 180 cupcakes. If he wants to pack them in boxes of 6 cupcakes each, how many boxes will he need?

• 30

• 32

• 25

• 40