Sum of This and Sum of That!
Find the Sum
4,329
+ 765
________
What is 5,004?
How can you decompose both addends to add 6,411 + 1,281?
What is 6,00 + 400 +10 + 1 + 1,000 + 200 + 80 + 1?
Find the difference
2,461
- 397
_______
What is 2,064?
Round to the nearest hundred
3,267 + 561
What is 3,300 and 600?
An art teacher had 140 jars of paint. In the first half of the year, her students used 95 jars of paint. The teacher bought 35 more jars of paint. At the end of the year she had 15 unused jars of paint. How many jars of paint did her students use in the second half of the year?
What is 65 jars?
Find the Sum
9,087
+ 7,668
__________
What is 16,755?
How will you decompose both addends to solve?
84,341 - 73,202
What is 80,000 + 4,000 + 300 + 40 + 1 and 70,000 + 3,000 + 200 + 2
Find the difference
8,722
-7,095
______
What is 1,627?
Round using front-end estimation
4,986 + 5,703
What is 4,000 + 5,000 ?
A food bank collected 3,887 food items in one month. The next month they collected 997 more food items. The following month they collected 572 fewer items than the first month. How many food items where collected over the three months?
What is 12,086 food items?
Find the Sum
37,391
+ 85,642
_________
What is 123,033?
How will you decompose the second addend to subtract?
48,293 - 23,113
What is 20,000 + 3,000 + 100 + 10 + 3?
Find the difference
31, 701
- 19, 568
_________
What is 12, 133?
Round to the nearest thousand
5,678 + 9,145
What is 6,000 + 9,000?
A company printed flyers to advertise their upcoming sale. The flyers were printed in 3 batches. the first batches had 7,355 flyers. The second batch had 1,690 fewer flyers than the first batch. The third batch had 895 fewer than the second batch. How many flyers did they print in all?
What is 17,790 flyers?
A car manufacturer has made 4,569 cars so far this month. They will make 5,268 more cars this month. How many cars will they make this month? Use an algorithm to solve.
What is 9,855 cars?
How will you decompose the second addend to solve?
356,891 - 115,240
What is 100,000 + 10,000 + 5,000 + 200 + 40?
Florence has 7,615 black and white photos and 3,978 color photos. How many more black and white photos does she have?
What is 3,637 more black and white photos?
Anton wrote the equation below. Is the difference reasonable? Explain:
1,988- 713 = 215
2,000- 700 = 1,300 Anton's difference of 275 is not close to 1,300.
The Valentine Hotel is preparing its pools for the summer. Pool A holds 11,842 gallons of water. Pool B holds 17,963 gallons of water. The hotel currently has 25,672 gallons of treated water ready to fill the pools. How much more water will they need to fill both pools?
What is 4,133 more gallons of water to fill both pools?
Lakeside High School East has 4,703 students. Lakeside High School West has 3,559 students. How many students do both schools have altogether?
How will you decompose both addends to solve?
567,824 - 123, 678
What is 500,000 + 60,000 + 7,000 + 800 + 20 +4 and 100,000 + 20,000 + 3,000 + 600 + 70 + 8?
A company bought a delivery truck for $35,698. A year later the company bought a second delivery truck for $39,105. How much more did they spend on the second truck?
What is $3,407 more
What is rounding to the nearest hundred gives an estimated difference of 2,100-1,600 = 500 Carmen's statement is reasonable
Kayla and her family are taking a four-day train trip across the country. They will be traveling a total of 2,787 miles. On the first and second day they traveled 825 miles total. On the third day they traveled 1,043 miles. How many miles left do they have to travel on the fourth day?
What is 919 miles?