Addition & Subtraction
5,428 + 4,596 = ___
10,024
Round 485 to the nearest ten.
490
326 x 4 = ___
1,304
What are the factors of 15?
1, 3, 5, 15
Mrs. Sheffer buys 4 packages of cookie mix. Each package makes 18 cookies. How many cookies can Mrs. Sheffer make?
72
12,124 - 1,316 = ___
10,808
Round 3,645 to the nearest hundred.
3,600
43 x 22 = ___
946
What is the 5th multiple of 4?
20
Mrs. Portwood buys a container of coffee that will make 492 cups of coffee. If she drinks 6 cups of coffee a day, how many days will the container of coffee last?
82
3,427 + 2,361 + 592 =
6,380
Round 19,562 to the nearest thousand.
20,000
365 / 5 = ___
73
What are the common factors of 12 and 20?
1, 2, and 4
Mr. Pierstorff buys 32 boxes of candy canes. Each box has 12 candy canes. Mr. Barker sneaks into Mr. Pierstorff's classroom and eats 195 candy canes. How many candy canes are left?
189
124,000 - 18,573 = ___
105,427
Round 143,218 to the nearest hundred.
143,200
4,597 / 3 = ___
1,532 r.1
Is 87 prime or composite?
composite
Mrs. Sheffer and her 3 friends wrap 51 gifts each. They take half of the gifts to the Lake Wales Care Center and the other half of the gifts to the Frostproof Care Center. How many gifts does each Care Center get?
102
12,596 + 3,426 = 20,000 - t
t = ___
3,978
Round 985,433 to the nearest ten thousand.
990,000
Estimate: 5,371 / 9 = ___
600
What is the divisibility rule for 3?
If you add each digit in the number and the sum is divisible by 3, then the entire number is divisible by 3.
Mrs. Tyler demands that the 4th grade teacher bake 200 gingerbread cookies. Mrs. Portwood baked 33 gingerbread cookies. Mr. Barker baked 18 gingerbread cookies. Mr. Pierstorff baked 21 gingerbread cookies. Mrs. Sheffer baked 42 cookies, but 7 of the cookies burned in the oven. How many more cookies do they need to bake?
93