Answer:
33000
Explanation:
To estimate the product of two numbers, round the individual numbers to numbers that you can multiply mentally.
Round 298 to the nearest hundred → 300.
(We don't need to round 110 as it is a multiple of 10, and therefore easy to multiply mentally).
Therefore,
⇒ 110 × 298 ≈ 110 × 300
To multiply 110 by 300, separate the 110 into 100 + 10:
⇒ 110 × 300 = (100 + 10) × 300
Apply the distributive property of multiplication:
⇒ (100 + 10) × 300 = 100 × 300 + 10 × 300
To multiply a number by 100, add two zeros.
To multiply a number by 10, add one zero.
Therefore:
⇒ 100 × 300 + 10 × 300 = 30000 + 3000 = 33000
Check
110 × 298 = 32780
32780 rounded to the nearest thousand is 33000.