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How Many Times? - Multiplication Tables 1 to 10

Grade 3CBSE

Review the key concepts, formulae, and examples before starting your quiz.

🔑Concepts

Multiplication as Repeated Addition: Multiplication is the process of adding the same number again and again. For example, if you have 4 groups of 3 flowers (3+3+3+33 + 3 + 3 + 3), it can be written as 4×3=124 \times 3 = 12. Visually, this looks like 4 separate plates with 3 flowers on each plate.

The Multiplication Sign: The symbol ×\times is used to represent 'times' or multiplication. In the expression 5×2=105 \times 2 = 10, the symbol tells us to take 5 groups of 2. It can be read as '5 times 2 is 10'.

Equal Groups: Multiplication is only used when groups are equal in size. If you have 3 bags and each bag contains exactly 5 marbles, you have 3 equal groups. If the bags had different numbers of marbles, you could not use simple multiplication.

Skip Counting on a Number Line: Multiplication can be visualized as jumps on a number line. To find 3×43 \times 4, you start at 0 and take 3 jumps of 4 units each (048120 \rightarrow 4 \rightarrow 8 \rightarrow 12). The spot where you land is the product.

Order Property (Commutative Property): Changing the order of the numbers does not change the answer. 2×5=102 \times 5 = 10 and 5×2=105 \times 2 = 10. Visually, an array of dots with 2 rows and 5 columns contains the same total number of dots as an array with 5 rows and 2 columns.

Multiplying by Zero: Any number multiplied by 00 is always 00. For example, 8×0=08 \times 0 = 0. This is like having 8 boxes with nothing inside them; the total number of items is zero.

Multiplying by One: Any number multiplied by 11 stays the same. For example, 6×1=66 \times 1 = 6. This is like having 1 group of 6 items, which is just 6 items.

Multiplication Tables and Patterns: Tables from 1 to 10 follow specific patterns. For example, the table of 5 always ends in 00 or 55 (5,10,15,205, 10, 15, 20 \dots), and the table of 10 always ends in 00 (10,20,3010, 20, 30 \dots).

📐Formulae

Number of Groups×Number of Items in each Group=Total NumberNumber\ of\ Groups \times Number\ of\ Items\ in\ each\ Group = Total\ Number

a×b=b×aa \times b = b \times a

a×0=0a \times 0 = 0

a×1=aa \times 1 = a

Repeated Addition: a+a+a+(n times)=n×aRepeated\ Addition:\ a + a + a + \dots (n\ times) = n \times a

💡Examples

Problem 1:

There are 6 bundles of sticks. Each bundle has 10 sticks. How many sticks are there in total?

Solution:

Number of bundles = 66. Sticks in each bundle = 1010. Total sticks = 6×10=606 \times 10 = 60.

Explanation:

Since there are 6 equal groups of 10, we multiply the number of groups by the quantity in each group to find the total.

Problem 2:

A car has 4 wheels. How many wheels do 7 cars have? Use repeated addition and multiplication.

Solution:

Repeated Addition: 4+4+4+4+4+4+4=284 + 4 + 4 + 4 + 4 + 4 + 4 = 28. Multiplication Fact: 7×4=287 \times 4 = 28. Total wheels = 2828.

Explanation:

We add the number 4 (wheels) seven times (for 7 cars), which is the same as calculating 7 times 4.