Math Mastery Challenge

Pisey and Ollita are baking cookies. If they need to multiply the number of batches they are making, and each batch requires 8 cookies, how many cookies will they need if they decide to make 7 batches?

• 48

• 64

• 72

• 56

Answer explanation

To find 8 multiplied by 7, calculate 8 x 7 = 56. Therefore, the correct answer is 56.

Panhavin has 56 apples and wants to share them equally among 8 friends. How many apples will each friend receive?

• 6

• 8

• 9

• 7

Answer explanation

To find the result of 56 divided by 8, perform the division: 56 ÷ 8 = 7. Therefore, the correct answer is 7.

MeiY has a collection of 452 marbles. What is the place value of 5 in the number of marbles she has?

• 5

• 5 tens

• 50

• 500

Answer explanation

In the number 452, the digit 5 is in the tens place. Therefore, its place value is 5 tens, which equals 50. Thus, the correct answer is 50.

Pisey is counting the number of books in her library. She has 3,205 books in total. How would you write that number in words?

• three thousand two hundred five

• three thousand two hundred fifteen

• three thousand two hundred

• three thousand two hundred fifty

Answer explanation

The number 3,205 is written as 'three thousand two hundred five'. The other options either misrepresent the last digit or omit parts of the number, making them incorrect.

Ollita and Pisey are sharing a total of 24 apples. How can they divide the apples into two parts that add up to 24?

• 12 and 12

• 5 and 19

• 8 and 16

• 10 and 14

Answer explanation

The correct partition of 24 into two parts that add up to 24 is 12 and 12. This is the only option where both parts are equal and their sum equals 24, making it the valid choice.

Panhavin has a bag that weighs 3 kg. If he has 4 bags, how much do they weigh in total?

• 15 kg

• 6 kg

• 12 kg

• 9 kg

Answer explanation

Each bag weighs 3 kg. Therefore, 4 bags weigh 4 x 3 kg = 12 kg. The correct answer is 12 kg.

Morokot and Pisey are trying to figure out how much double 14 is. Can you help them?

• 32

• 30

• 28

• 26

Answer explanation

Double 14 means multiplying 14 by 2. 14 x 2 = 28, which is the correct answer. The other options (32, 30, 26) do not result from doubling 14.

Ollita and Pisey are collecting apples from a tree. They picked 2, then 4, then 6 apples. How many apples will they have picked after the next two rounds?

• 9

• 12

• 7

• 8, 10

Answer explanation

The pattern increases by 2 each time: 2, 4, 6, 8, 10. Therefore, the next two numbers are 8 and 10, making '8, 10' the correct choice.

Order the ages of Morokot, Pisey, and MeiY from least to greatest.

• 12, 45, 78

• 12, 78, 45

• 78, 12, 45

• 45, 12, 78

Answer explanation

To order the numbers 45, 12, and 78 from least to greatest, we compare them. 12 is the smallest, followed by 45, and then 78. Thus, the correct order is 12, 45, 78.

Ollita has 67 apples and wants to round that number to the nearest ten. How many apples does she have after rounding?

• 70

• 75

• 80

• 60

Answer explanation

To round 67 to the nearest ten, look at the digit in the ones place (7). Since 7 is 5 or more, round up to 70. Therefore, the correct answer is 70.