Practice Exercises
Solution & Explanation · ID: E8BCBB4F
Question
A company sold 45,678 items in January, 52,341 items in February, and 48,923 items in March. Round the total sales to the nearest ten thousand.
Hint
First add all three numbers, then round the sum to the nearest ten thousand.
Concept
This problem combines addition of multi-digit numbers with rounding to a specific place value.
Show Answer
Total: 146,942
Show Solution
Add the three months' sales: 45,678 + 52,341 + 48,923
Add ones place: 8 + 1 + 3 = 12, write 2 and carry 1
Add tens place: 7 + 4 + 2 + 1 = 14, write 4 and carry 1
Add hundreds place: 6 + 3 + 9 + 1 = 19, write 9 and carry 1
Add thousands place: 5 + 2 + 8 + 1 = 16, write 6 and carry 1
Add ten thousands place: 4 + 5 + 4 + 1 = 14, write 4 and carry 1
Add hundred thousands place: 0 + 0 + 0 + 1 = 1
Total = 146,942
Round 146,942 to nearest ten thousand: look at thousands digit (6)
Since 6 ≥ 5, round up: 150,000