Estimation
Equations
Fact Families
One Step Problems
Two Step Problems
100
Estimate the answer.
480 + 96 = ?
500 + 100 = 600
100
147 + 65 = ?
212
100
Look at the answer choices below. Three of the number sentences belong to the same fact family. Which number sentence does not belong?
24 - 16 = 8
24 - 8 = 16
24 + 16 = 40
16 + 8 = 24
24 + 16 = 40
100
What is the sum of 154 and 237?
154 + 237 = 391
100
Stone Hill Elementary School collected canned goods for charity. The third grade team collected 742 canned goods. The first grade team collected 213 canned goods and the second grade team collected 143 canned goods. How many more canned goods did the third grade team collect than the first and second grade teams combined?
143 + 213 = 356
742 - 356 = 386 canned goods
200
Estimate the answer.
943 - 52 = ?
900 - 100 = 800
200
Solve using the expanded form.
338 + 164 = ?
300 + 30 + 8
100 + 60 + 4
400 + 90 + 12 = 502
200
Complete the Fact Family
27, 79, ___
27 + 79 = 106
79 + 27 = 106
106 - 79 = 27
106 - 27 = 79
200
What is the difference between 672 and 428?
672 - 428 = 244
200
The elves made 94 toys last night and 49 toys today. They were wrapping the toys up and a box fell and 8 toys got broken. How many toys are left?
94 + 49 = 143
143 - 8 = 135 toys
300
Estimate the answer.
623 + 479 = ?
600 + 500 = 1,100
300
Solve using the expanded form.
836 - 268 = ?
700 + 120 + 16
200 + 60 + 8
500 + 60 + 8 = 568
300
Chan used the fact 4 + 7 = 11, to help solve a different problem. What subtraction could she use this equation to solve?
11 - 4 = 7
OR
11 - 7 = 4
300
During the two week-long food drive, West Elementary collected 524 cans and 253 boxes. How many items did they collect altogether?
524 + 253 = 777 item
300
There are 225 students in the third grade, 143 students in the second grade and some students in the first grade. There are 583 students all together. How many students are in the first grade?
225 + 143 = 368
583 - 368 = 215 students
400
Estimate the answer.
905 - 628 = ?
900 - 600 = 300
400
Solve using the expanded form.
761 + 139 = ?
700 + 60 + 1
100 + 30 + 9
800 + 90 + 10 = 900
400
Use a number line using the count on strategy to solve the equation.
523 - 285 = ?
400
It takes three hundred gallons of water to fill the small pool in Jamie's backyard. His dad is using the water hose to add almost the entire amount, but the pool still needs 80 more gallons to be full. How much water did Jamie put in the pool?
300 - 80 = 220 gallons
400
Our class made 325 snowflakes to decorate our room. We put 128 snowflakes on the windows. Then we decided to put 76 snowflakes on the door. How many snowflakes do we have left?
325 - 128 = 203
203 - 76 = 127 snowflakes
500
Estimate the answer.
734 - 461 = ?
700 - 500 = 200
500
Solve using the expanded form.
545 - 385 = ?
400 + 140 + 5
300 + 80 + 5
100 + 60 + 0 = 160
500
Use number line to solve the following equation using the count on strategy.
873 - 562 = ?
500
In a long jump competition, George jumped 238 cm. The winner jumped 275 cm. How much further was the winning jump?
275 - 238 = 37 cm
500
We collected 735 cans for the food drive on Monday and 287 cans on Friday. Throughout the week 1324 cans were collected. How many cans were collected between Tuesday and Thursday?
735 + 287 = 1,022
1,324 - 1,022 = 302 cans