Multiplication and Division problem solving 2

Front

What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 3 multiplied by 4 (3 x 4) means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Front

What is division?

Back

Division is a mathematical operation where a number is split into equal parts. For example, 12 divided by 3 (12 ÷ 3) means splitting 12 into 3 equal parts, which equals 4.

Front

How do you find the total number of items when you have groups of the same size?

Back

To find the total number of items, multiply the number of groups by the number of items in each group. For example, if there are 5 groups of 4 apples, the total is 5 x 4 = 20 apples.

Front

What is the relationship between multiplication and division?

Back

Multiplication and division are inverse operations. If you know that 4 x 5 = 20, you can also say that 20 ÷ 5 = 4.

Front

If a pack contains 8 marbles and you have 7 packs, how many marbles do you have?

Back

7 packs x 8 marbles per pack = 56 marbles.

Front

If you have 8 cakes and each cake is cut into 8 slices, how many slices do you have?

Back

8 cakes x 8 slices per cake = 64 slices.

Front

If 9 people each bring 1 guest to a party, how many people are at the party?

Back

9 people + 9 guests = 18 people.

Front

If a pet store has 30 treats and gives 5 treats to each dog, how many dogs can get treats?

Back

30 treats ÷ 5 treats per dog = 6 dogs.

Front

If Mrs. Smith spent $35 on 7 hats, how much did each hat cost?

Back

$35 ÷ 7 hats = $5 per hat.

Front

What is an array in multiplication?

Back

An array is a visual representation of multiplication using rows and columns. For example, 3 rows of 4 objects each can represent 3 x 4.