Question 36 of 47intermediate✨ CreateShort Answer3 marks

Write 5 other examples for which you can find easy ways of getting products.

Correct Answer

Five examples with easy methods:

1) 48×2548 \times 25 = 1200 Method: Multiply by 100, divide by 4.

2) 24×12524 \times 125 = 3000 Method: Multiply by 1000, divide by 8.

3) 99×4599 \times 45 = 4455 Method: Use 100×45100 \times 45 - 45.

4) 32×7532 \times 75 = 2400 Method: Multiply by 300, divide by 4.

5) 201×38201 \times 38 = 7638 Method: Use 200×38200 \times 38 + 38.

Exercise: Check, Check! | Q: 3 | (Page Page 17)
For More Understanding

Explanation

Students should create their own examples using strategies like multiplying by 25, 75, 125, or using nearest multiples for numbers close to multiples of 10 or 100.

Solution Steps

  1. 48×2548 \times 25 = 1200 (multiply by 100, divide by 4)

  2. 24×12524 \times 125 = 3000 (multiply by 1000, divide by 8)

  3. 99×4599 \times 45 = 4455 (use 100×45100 \times 45 - 45)

  4. 32×7532 \times 75 = 2400 (multiply by 300, divide by 4)

  5. 201×38201 \times 38 = 7638 (use 200×38200 \times 38 + 38)

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