3-Digit Addition
3-Digit subtraction
Measurement
Measuring with a ruler
Problem Solving
100
Use the partial sum strategy to add:
451 + 328= ?
400 + 300 = 700
50 + 20 = 70
1 + 8 = 9
700 + 70 + 9 = 779
100
Subtract using a number line.
640 - 360 =
640 - 360 = 280
100
Which object would be about 1 inch in length?
Duplo Lego
Game die
100
Look at the ruler. Which unit of measurement is being used to measure the nail?
Inches
100
Mrs. Pickett is growing a sunflower. She measured her plant on Sunday and it was 55 cm. She measured it two weeks later and it grew 36 cm. How tall is her plant now?
91 cm
200
Find the sum using the count on strategy.
584 + 225 = ?
584 + 200 = 784
784 + 20 = 804
804 + 5 = 809
200
Solve the following subtraction facts.
15 - 8 =
17 - 9 =
14 - 9 =
15 - 8 = 7
17 - 9 = 8
14 - 9 = 5
200
List 2 objects that would measure about a foot or 12 inches that are around our classroom.
laptop
shoe
lunch box
orange take home folder
brick on the wall
200
Look at the ruler. Which unit of measurement is being used to measure the crayon?
Centimeters
200
Mrs. Pickett's bean plant measured 24 inches. After a month it measured 45 inches. How many inches did it grow in a month?
45 - 24 = 21 inches
300
Add by using a strategy of your choice.
Partial Sum or Count On
459 + 347 =
806
300
Subtract using a number line.
782 - 753 =
782 - 753 = 29
300
Which measurement would be best to measure the height of the window.
centimeter
meter
kilometer
centimeter or meter
300
How many paper clips shorter is the match stick to the dog bone?
7 - 4 = 3 paperclips
300
Ms. Birsa was flying her kite and it went 60 feet into the sky. Mrs. Pickett was flying her kite and it only went 47 feet into the sky. How much higher did Mrs. Birsa's kite fly than Mrs. Pickett's kite?
60 - 47 = 13 feet
400
Solve the following math facts.
9 + 7 =
9 + 5 =
6 + 7 =
9 + 7 = 16
9 + 5 = 15
6 + 7 =13
400
What are the fact families for these numbers.
16, 9 , 7
9 + 7 = 16
7 + 9 = 16
16 - 9 = 7
16 - 7 = 9
400
I want to measure the length on my projector screen. Which would be the best estimate height?
a. about 2 meters
b. about 20 meters
c. about 200 meters
a. about 2 meters
400
Measure the scissors to the nearest cm. Look closely to where the object begins on the ruler. 
17 - 5 = 12 cm
400
Use the table to answer the questions.
How much would a burger and fries cost?
$1.67 + $1.39 =
100 + 100 = 200
60 + 30 = 90
7 + 9 = 16
$3.06
500
Find the error and solve it correctly.
639 + 245 =
600 + 200 = 800
30 + 40 = 70
9 + 5 = 15
600 + 200 = 800
30 + 40 = 70
9 + 5 = 14
639 + 245 = 884
500
Subtract using a number line.
564 - 243 =
564 - 243 = 321
500
Look at the picture and determine the measurement of each object.
pencil= 4 inches
paper clip = 2 inches
sharpener = 1 inch
500
Measure the magnet to the nearest inch. Look closely to where the object begins on the ruler.
27 - 18 = 9 inches
500
Stella buys chicken nuggets and a drink. She has $0.31 left. How much money did she start with.
$0.69 + $1.00= $1.69
1.69 + .31 = $2.00