Question

Estimated pro
- 100
(b)
105 rounded down to the neel
495 rounded up to the nearest 100
Estimated product
Teacher's Support
Allow the students to think and find out themselves which is the most reasonable strategy depending on
factors for better estimation. They will learn some more techniques later.
Exercise 3F
(d) 725
1.
(c) 205 x 103
( (d) 41
(a) 269 x 48
Estimate the product by rounding the factors to their highest place.
2. Estimate the product first then compare it with the actual product.
(c) 556 x 131
(b) 485 x 196​

Answer 1

Answer:

Estimated pro

- 100

(b)

105 rounded down to the neel

495 rounded up to the nearest 100

Estimated product

Teacher's Support

Allow the students to think and find out themselves which is the most reasonable strategy depending on

factors for better estimation. They will learn some more techniques later.

Exercise 3F

(d) 725

1.

(c) 205 x 103

( (d) 41

(a) 269 x 48

Estimate the product by rounding the factors to their highest place.

2. Estimate the product first then compare it with the actual product.

(c) 556 x 131

(b) 485 x 196

Answer 2

Estimated pro
- 100
(b)
105 rounded down to the neel
495 rounded up to the nearest 100
Estimated product
Teacher's Support
Allow the students to think and find out themselves which is the most reasonable strategy depending on
factors for better estimation. They will learn some more techniques later.
Exercise 3F
(d) 725
1.
(c) 205 x 103
( (d) 41
(a) 269 x 48
Estimate the product by rounding the factors to their highest place.
2. Estimate the product first then compare it with the actual product.
(c) 556 x 131
(b) 485 x 196