World Math Day Parents' Competition

The school says a child’s backpack shouldn’t weigh more than 15 kg. Your child’s bag weighs 18 kg. How many kg of books should you remove?

• 2 kg

• 3 kg

• 5 kg

• 1 kg

Your child takes 45 minutes to get ready for school. If they wake up at 6:30 AM, what time will they be ready?

• 7:15 PM

• 7:30 AM

• 7:00 AM

• 7:15 AM

Match the correct order of operations by dragging the steps into the right sequence. ​ (a)   ​ (b)   ​ (c)   ​ ​ (d)  

• Parentheses
• Exponents
• Multiplication & Division
• Addition & Subtraction

• Do addition

(15 - 3) × 2 + 8 ÷ 4

• 22

• 24

• 26

• 28

Solve: 8 + 2 × (6 ÷ 3) - 4

• 8

• 12

• 10

• 6

You need 2.5 cups of flour to bake cookies, but your measuring cup is missing. If you only have a ½ cup, how many scoops do you need?

• 4

• 5

• 6

• 4.5

Your child’s toy car travels at 15 cm per second. If it zooms for 10 seconds, how far does it go?

(a)  

You filled a 2-liter bottle with juice, but your child just spilled 500 ml. How much is left?

• 1 liter

• 1.25 liters

• 1.5 liters

• 1.75 liters

In a survey, parents of elementary school children were asked how many hours per week they spent helping their children with homework. Suppose 88 parents said they spent 1 to 4 hours.

How many parents were surveyed?

(a)