Big Sums
Add 4,218 + 5,403.
9,621
Subtract 7,832 – 4,619.
3,213
Estimate 3,482 + 5,199 to the nearest thousand.
≈ 8,000
A bakery sold 2,345 muffins in the morning and 3,280 in the afternoon. How many in all?
5,625
Nina has $450 after spending $75. Write an equation to find how much she started with.
x - 75 = 450 → x = 525
Find the sum of 12,807 + 8,469.
21,276
Find the difference: 25,600 – 19,874.
5,726
2. Estimate 42,758 – 19,331 to the nearest ten thousand.
≈ 20,000
A warehouse had 75,000 boxes. It shipped 28,349 yesterday. How many remain?
46,651
A tank holds x gallons. After adding 15,200 gallons, it still needs 9,800 gallons to be full. Write and solve for x.
x = 15,200 + 9,800 → x = 25,000
56,901 + 27,488 = ?
84,389
A train traveled 98,305 miles in 2024 and 74,089 miles in 2023. How many more miles in 2024?
24,216
A zoo had 12,467 visitors in June and 15,892 in July. About how many visitors altogether? Round to the nearest thousand.
≈ 28,000
A classroom collected 3,652 pennies in Week 1 and 4,789 in Week 2. They need 12,000 total. How many more pennies are needed?
3,559
Sam saved some money. After earning $245 more, he has $620. Write and solve an equation to find Sam’s starting amount.
s + 245 = 620 → s = 375
A town had 34,562 visitors last year and 48,930 this year. How many visitors altogether?
83,492
A company produced 305,750 cans in January and 278,965 in February. How many more in January?
26,785
. A factory made 92,618 toys one year and 57,482 the next. Is 150,000 a reasonable estimate of their combined total? Explain.
Yes, actual total ≈ 150,100
A science teacher bought 25,000 mL of vinegar. She used 6,400 mL on Monday and 7,250 mL on Tuesday. How much is left?
11,350 mL
The school library had x books. They bought 3,218 more and now have 14,907. Write and solve for x.
x + 3,218 = 14,907 → x = 11,689
The library owns 128,745 fiction books and 96,238 nonfiction books. What is the total number of books?
224,983
The population of City A is 654,327. City B has 589,218. How many more people live in City A?
65,109
A mountain is 18,493 feet high. Another is 12,876 feet. About how many feet taller is the first mountain? Round to the nearest thousand.
≈ 5,000
A sports store had 120,000 baseballs. It sold 45,675 in April and 28,409 in May. How many baseballs remain?
45,916
A theater sold x tickets. Friday sales were 28,560 and Saturday sales were 31,442. If x is the total tickets, write and solve for x.
x = 28,560 + 31,442 → x = 60,002