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Multiplying and dividing by three | Year 3 Mathematics PDF Download

Multiplying by 3

Example 1: Pencils: I have 4 groups of 3 pencils each. To find the total number of pencils, we can use repeated addition:
Multiplying and dividing by three | Year 3 Mathematics

3 + 3 + 3 + 3 = 12
Alternatively, this can be represented as 4 groups of 3:
4 x 3 = 12

Example 2: Triangles: If we have 5 triangles with each having 3 sides, we calculate the total number of sides using multiplication:
Multiplying and dividing by three | Year 3 MathematicsThe repeated addition is 3 + 3 + 3 + 3 +3 = 15
5 x 3 = 15

Dividing by 3

When we say divide by 3, we mean distributing an amount or number into 3 equal groups.

Example: Marbles: Suppose we have 6 marbles and we want to divide them among 3 people equally. This means putting 6 marbles into 3 groups:
Multiplying and dividing by three | Year 3 Mathematics

After sharing equally, each group will have 2 marbles.
Multiplying and dividing by three | Year 3 Mathematics

So, 6 ÷ 3 = 2

The document Multiplying and dividing by three | Year 3 Mathematics is a part of the Year 3 Course Year 3 Mathematics.
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FAQs on Multiplying and dividing by three - Year 3 Mathematics

1. How can I multiply a number by 3?
Ans. To multiply a number by 3, you simply need to add the number to itself two more times. For example, to multiply 4 by 3, you would calculate 4 + 4 + 4 = 12.
2. What is the significance of multiplying by 3 in mathematics?
Ans. Multiplying by 3 is important in mathematics as it helps in understanding multiplication concepts such as repeated addition and multiplication tables. It also helps in developing mental math skills.
3. How can I divide a number by 3?
Ans. To divide a number by 3, you simply need to divide the number by 3. For example, to divide 12 by 3, you would calculate 12 ÷ 3 = 4.
4. Why is dividing by 3 useful in mathematics?
Ans. Dividing by 3 is useful in mathematics as it helps in understanding division concepts such as sharing and grouping. It also helps in developing problem-solving skills.
5. How can multiplying and dividing by three be applied in everyday life situations?
Ans. Multiplying and dividing by three can be applied in everyday life situations such as calculating recipes, dividing a budget among friends, or determining discounts on sale items. It helps in developing practical math skills that are useful in various real-life scenarios.
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