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Place Value
Estimation/Rounding
Addition/Subtraction
Word Problems
Mental Math
100
The place value of the 4 in the number: 234,956.69
What is thousands?
100
This number rounded to the ten thousands place: 34,543.
What is 35,000?
100
1,345 + 23,094 is.
What is 24,439?
100

A carnival has 9 rides. Each ride can carry 7,200 people each day. The carnival owner says that 50,000 people can ride each day. Is this reasonable? Show your work. 

7,200 x 9 = 

7,000 x 9 = 63,000

200 x 9 = 1,800


63,000 + 1,800 = 64,800 people 

Not reasonable.

100

A chocolate chake has 2285 calories. A carton of ice cream has 2465 calories. About how many calories are in both of these together?

About 4800 calories are in these together.

200
The value of the number 5 in the number: 598,876.09
What is 500,000?
200
5,123 rounded to the tens place.
What is 5,120?
200
345,769 +24,093 is.
What is 369,862?
200

Find the two estimates for this problem. 

Jackie 4 classes to take. Each class has 26 students. Jackie wants to make sure she has enough donuts to share with her classmates. She wants to order 100 donuts. Will this be enough? 

No because 26 rounds to 30 and 4 times 30 equals 120 so she will need at least 120 donuts. 

200

6,545 + 3,007 

Round to the nearest thousand and add 

7,000 + 3,000 = 10,000

300

6 x 4 ones = 

6 x 4 tens = 

6 x 4 hundreds = 

6 x 4 thousands = 

24 ones

240 tens

2,400 hundreds

24,000 thousands 

300
844.57 rounded to the nearest whole number.
What is 845.00?
300
24,000 - 9,999 =
What is 14,001?
300

Stacey and Ryan picked out 5,400 raisins from their trail mix. They put the same amount of raisins in six containers. How many raisins were in one container?

5,400 divided by 6 = 900 raisins in each container

300

Round to the nearest thousand and subtract 

7,478 - 6,322

7,000- 6,000 = 1,000

400

The storage closet has 5,000 boxes. Each box weighs 6 pounds. What is the weight of all the boxes? 

5 x 6 =

5 x 60 = 

5 x 600 = 

5 x 6,000 = 

30 


300

3,000

30,000 

Pounds 

400
When a number is rounded to the nearest whole number it is the same as rounding to this place.
What is ones place?
400
34,230 - 23,490 =
What is 10,740?
400

The local fair had 42,000 people attend the last seven days. If the same number of people attended each day, how many people attended the first day? What if it was 4,200 people?

42,000 divided by 7 = 6,000 people 

4,200 divided by 7 = 600 people 

400

2,400 divided by 8 

24 divided by 8 = 3 

2,400 divided by 8 = 300

500

32 ones divided by 4 = 

32 tens divided by 4 = 

32 hundreds divided by 4 =

32 thousands divided by 4 = 

8 

80

800

8,000

500

Maddie has 480 plushies. She gives the same number of plushies to her sister and three friends. How many plushies does each person get?

480 divided by 4 friends is 120 plushies

500
12,345,678 + 42,345 is.
What is 12,388,023?
500

Ms. Rangel is planting seeds in her garden. She is planting tomatoes, carrots, sunflowers, and corn. She will plant five rows of each type of seed and then plant twenty seeds in each row. How many seeds will Ms. Rangel plant?

4 x 5 x 20 =  

4 x 20= 80 

80 x 5= 

400 Seeds all together. 

500

369 divided by 9 = 

369 = 360 +9

360 divided by 9 = 40

9 divided by 9 = 1 

40+1 = 41