Let’s solve each problem one by one. We’ll add the numbers and then round to the nearest ten, hundred, or thousand as asked.
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1)
Animals: 322
People: 859
Total = 322 + 859 =
1181
Round to nearest ten → Look at the ones digit (1). Since it’s less than 5, we round down.
→
1180
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2)
Mr. Smith’s class: $246
Mrs. White’s class: $833
Total = 246 + 833 =
1079
Round to nearest ten → Ones digit is 9 → round up.
→
1080
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3)
Regular soda: 491
Diet soda: 117
Total = 491 + 117 =
608
Round to nearest ten → Ones digit is 8 → round up.
→
610
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4)
Chocolate milk: 603
Regular milk: 825
Total = 603 + 825 =
1428
Round to nearest hundred → Look at tens digit (2) → less than 5 → round down.
→
1400
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5)
Sneakers: 300
Sandals: 567
Total = 300 + 567 =
867
Round to nearest ten → Ones digit is 7 → round up.
→
870
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6)
Chapter one: 882
Chapter two: 170
Total = 882 + 170 =
1052
Round to nearest ten → Ones digit is 2 → round down.
→
1050
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7)
Alex: 812 texts
Jessie: 460 texts
Total = 812 + 460 =
1272
Round to nearest ten → Ones digit is 2 → round down.
→
1270
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8)
Letters: 166
Magazines: 145
Total = 166 + 145 =
311
Round to nearest hundred → Tens digit is 1 → less than 5 → round down.
→
300
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9)
Plastic chairs: 714
Wooden chairs: 645
Total = 714 + 645 =
1359
Round to nearest ten → Ones digit is 9 → round up.
→
1360
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10)
Gorilla A: 489 pounds
Gorilla B: 388 pounds
Total = 489 + 388 =
877
Round to nearest ten → Ones digit is 7 → round up.
→
880
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Final Answer:
1. 1180
2. 1080
3. 610
4. 1400
5. 870
6. 1050
7. 1270
8. 300
9. 1360
10. 880
Parent Tip: Review the logic above to help your child master the concept of rounding word problems worksheet.
