Topic 1 - Quick Check - Understand Multiplication and Division

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 × 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 ÷ 3 means splitting 12 into 3 equal groups, which gives 4.

Front

What does the equation 20 ÷ 4 represent?

Back

It represents dividing 20 items into 4 equal groups, which means each group has 5 items.

Front

If Mrs. Boyer has 15 teacups and puts them on 3 shelves equally, how many teacups are on each shelf?

Back

5 teacups.

Front

How do you find the total number of items in equal rows?

Back

Multiply the number of rows by the number of items in each row. For example, 4 rows of 5 items each equals 4 × 5 = 20 items.

Front

What is an array in multiplication?

Back

An array is a visual representation of multiplication where items are arranged in rows and columns. For example, 3 rows of 4 items each can be represented as 3 × 4.

Front

What is the multiplication equation for 5 rows of 6 items?

Back

5 × 6 = 30.

Front

What is the result of 8 × 1?

Back

8.

Front

What does the term 'equal groups' mean in division?

Back

Equal groups refer to dividing a total into parts that are the same size. For example, 20 ÷ 4 means making 4 equal groups from 20.

Front

How can you check if your division is correct?

Back

You can multiply the quotient by the divisor to see if you get the original number. For example, if 20 ÷ 4 = 5, then check by doing 5 × 4 = 20.