Addition Adventures
Find the sum of 2,318 and 4,762.
2,318 + 4,762 = 7,080
Solve: 6,204 – 2,985 =N
3,219
Decide if each is True or False:
a) 45,029 > 45,092 b) 78,603 < 78,630
a) False b) True
Round 42,678 to the nearest thousand
43,000
A park has 256 oak trees and 378 pine trees. How many trees are there in all?
256 + 378 = 634 trees
Add 15,247 + 32,816. Show your work.
15,247 + 32,816 = 48,063
Find the difference between 41,608 and 23,492
18,116
Which digit in 92,458 has the greatest value? Explain how you know.
The 9 — it’s in the ten-thousands place, worth 90,000.
Round 259,874 to the nearest ten thousand.
260,000
The school has 624 fourth graders and 578 fifth graders. How many more fourth graders than fifth graders are there?
624 – 578 = 46 more
A library has 8,452 books. It just received 6,298 more. How many books does it have now?
8,452 + 6,298 = 14,750
A stadium held 52,000 fans for a concert, but 18,763 tickets were unused. How many people attended?
52,000 – 18,763 = 33,237
Compare the values of the 6s in 66,543 using words or numbers.
Left 6 = 60,000 Right 6 = 6,000 → The left 6 is 10 times greater.
A number was rounded to 90,000. Give three possible numbers it could have been.
Any from 85,000–94,999, e.g. 88,215, 91,472, 89,999
A store had 9,406 pencils. After selling 5,278, how many are left?
9,406 – 5,278 = 4,128
The zoo had 14,875 visitors in June and 17,492 in July. How many total visitors did the zoo have in those two months?
14,875 + 17,492 = 32,367
A farmer harvested 75,420 apples. She sold 58,936 of them. How many apples remain?
75,420 – 58,936 = 16,484
The 3 in 53,147 is how many times greater than the 3 in 5,317?
The 3 in 53,147 is 100 times greater (3,000 vs 30).
Round 1,258,493 to the nearest hundred thousand.
1,300,000
Two towns have populations of 72,384 and 58,629. A nearby city has 140,000 people. How many more people live in the city than in both towns combined?
Step 1: 72,384 + 58,629 = 131,013
Step 2: 140,000 – 131,013 = 8,987
A city has 123,507 people, and 29,683 more moved in this year. What is the new population?
123,507 + 29,683 = 153,190
A town had 92,758 people last year and 84,205 this year. How many fewer people live there now?
92,758 – 84,205 = 8,553
Sam’s number: 84,729 Mia’s number: 8,472. Which digits have 10 times the value in Sam’s number?
The 8, 4, and 7 — each is one place value higher, worth 10 times as much.
A number was rounded to 500,000 when rounded to the nearest hundred thousand. What might that number have been?
Any from 450,000–549,999
ex. 462,800, 513,999, 547,250
A museum began the year with 18,492 visitors. In the next two months, 9,653 and 11,207 more visited. Then 3,215 fewer came the following month. How many total visitors were there after four months?
Step 1: 18,492 + 9,653 + 11,207 = 39,352
Step 2: 39,352 – 3,215 = 36,137