Question

estimation means finding a reasonable answer. an estimate is not exact, but it is close. rounding the numbers in a problem is a good way to estimate an answer. round each number to the nearest hundred. then add the rounded numbers. the symbol ≈ means “approximately equal to.” 4. 3,948 + 758 + 6,799 + 437 ≈ 11,900 5. 787 + 3,316 + 213 + 5,449 ≈ 9,500 6. 108 + 7,915 + 3,736 + 615 ≈ 12,300 9,081 + 752 + 2,978 + 93 = 13,000 520 + 2,186 + 706 + 5,807 ≈ 9,200 714 + 7,465 + 302 + 4,974 = 13,500

Explanation:

Step1: Round 108 to nearest hundred

$108\approx100$

Step2: Round 7915 to nearest hundred

$7915\approx7900$

Step3: Round 3736 to nearest hundred

$3736\approx3700$

Step4: Round 615 to nearest hundred

$615\approx600$

Step5: Add the rounded numbers

$100 + 7900+3700 + 600=12300$

Answer:

$12300$