multiplying 3-digit number by a 1 digit number

multiplying 3-digit number by a 1 digit number

1. Estimating the Result of Multiplying 2 Numbers

2. Let’s race. 235 × 14 312 × 17 123 × 22 254 × 31 176 × 12

3. How many mangoes are there in the baskets?

4. How do trees like the Mango tree benefit our environment, and why are they important to us?

5. Trees help our environment by providing clean air, reducing carbon dioxide, preventing soil erosion, and offering habitats for wildlife. They are important to us because they support life and improve our well-being.

6. By appreciating and caring for trees, we show our love for nature and protect the planet for future generations.

7. Let’s read. Mang Joel and his company are planting 1,765 Narra trees during reforestation month. If they plan to distribute the trees evenly across 23 hectares, about how many trees will they plant in total?

8. What phrase in the problem where estimating products is being asked?

9. Steps in estimating products:

10. • Round the multiplicand and multiplier to the highest/greatest place value, Then, multiply the rounded numbers.

11. 1765 2000 X 23 x 20 40,000

12. Remember: To multiply numbers which are multiples of 10, the number of zeroes in the factors are the number of zeroes in the product. The factors are the numbers being multiplied to get the product.

13. Estimation Relay Race

14. Arrange stations with multiplication problems involving two numbers (482 × 37, 591 × 28, 738 X 14, 495 × 26). Each station should have a problem card and a space for learners to write their estimates.

15. How do we estimate products?

16. Estimation is useful in real-life situations when you need a quick, approximate answer rather than an exact figure.

17. For example, it helps when budgeting to get a general idea of costs, when shopping to check if you're within your budget, or when planning projects to quickly estimate quantities and expenses.

18. Assessment

19. Estimate the product of the following.

20. 1. 2. 3. 3246 X 27 4546 X 46 5646 X 86

21. 4. 5. 3646 X 84 6541 X 57