Addition & Subtraction to 10,000 (4.N3) · Page 7 of 14
➕ Estimating with Compensation
Using compensation (rounding to friendly numbers) to estimate
💡 Tip for parents: Compensation means nudging numbers to friendly ones: 398 is nearly 400, so 398 + 456 is about 400 + 456. It gives closer estimates than front-end alone!
Score: 0 / 55 to go
- Question 1
Estimate 398 + 456 using compensation.
- Question 2
Estimate 603 − 398 using compensation.
- Question 3
Estimate 2,998 + 1,234 using compensation.
- Question 4
Estimate 1,005 − 498 using compensation.
- Question 5
Estimate 4,999 − 2,001 using compensation.