We Know: 80 × 100 = 8000 Find: 80 × 50 = 40 × 50 =

Question 23 of 42intermediate🔧 ApplyNumerical2 marks

We Know: $80 \times 100 = 8000$ Find: $80 \times 50 = \_\_\_\_\_$

40 \times 50 = \_\_\_\_\_

Correct Answer

Given: $80 \times 100 = 8000$ Find: $80 \times 50$ and $40 \times 50$

Step 1: Express 50 as 5 Tens or as half of 100.

Step 2: Calculate $80 \times 50$ .

80 \times 50 = 80 \times 5 \text{ Tens}

= 400 \text{ Tens}

= 4000

Alternatively:

80 \times 50 = 80 \times 100 \div 2

= 8000 \div 2

= 4000

Step 3: Calculate $40 \times 50$ .

40 \times 50 = 40 \times 5 \times 10

= 200 \times 10

= 2000

Answer:

80 \times 50 = \mathbf{4000}

40 \times 50 = \mathbf{2000}

Exercise: Multiples of 100 | Q: 27 | (Page Page 10)

For More Understanding

Explanation

$80 \times 50 = 80 \times 5$ Tens $= 400$ Tens $= 4000$ . Alternatively, $80 \times 50 = 80 \times 100 \div 2 = 8000 \div 2 = 4000$ . Similarly, $40 \times 50 = 2000$ .

Solution Steps

Step 1: Express 50 as 5 Tens or as half of 100
Step 2: $80 \times 50 = 80 \times 5 \times 10 = 400 \times 10 = 4000$
Step 3: $40 \times 50 = 40 \times 5 \times 10 = 200 \times 10 = 2000$

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