Represent
Addition
Addition
What does a stick represent when adding decimals?
1 tenth
What does a square represent when subtracting decimals?
1 whole or 1 one
What is 37.9 + 18.2?
56.1
What is 6.4-3.3?
3.1
What is an equation that is a reasonable estimate for 34.7 + 21.2?
A. 40 + 25 = 65
B. 30 + 20 = 50
C. 35 + 20 = 55
C. 35 + 20 = 55
What decimal would 2 sticks and 6 dots represent?
0.26
What decimal would 6 squares, 1 stick, and 4 dots represent?
6.14
What is 6.89 + 7.34?
14.23
What is 32.4-19.52?
12.88
What is an equation that is a reasonable estimate for 18.55 - 2.21?
A. 18.5 - 2.25 = 16.25
B. 20 - 2 = 18
C. 18 - 3 = 15
A. 18.5 - 2.25 = 16.25
Add 0.65 + 0.9. What would the drawing look like?
1.55 (see Ms. Carlson's drawing)
Subtract 0.9 - 0.2. What would a drawing look like?
0.7 (see Ms. Carlson's drawing)
What is 29.67 + 13.9?
43.57
What is 37.41-29.08?
8.33
Amanda got 12.5 points on one assignment and 18 points on another assignment. She says she has about 30 points altogether. Is Amanda's statement reasonable?
Yes, it is reasonable. 12 + 18 = 30.
Shade in a model to show 0.34 + 0.58. What is the sum?
0.92 (see Ms. Carlson's drawing)
Use a decimal model to show 0.64 - 0.17. What is the difference?
0.47 (see Ms. Carlson's drawing)
What is 2.5 + 3.26 + 4.34?
10.1
What is 76.5 - 57.42?
19.08
Caleb read for 2.2 hours at home last week, and this week he read for 4.9 hours at home. Is it reasonable to say that he read for about 6 hours at home over the last two weeks?
No, it is not reasonable. (2 + 5 = 7 is more reasonable)
Add 3.4 + 4.93. What would the drawing look like?
8.33 (see Ms. Carlson's drawing)
Subtract 8 - 6.99. What would the drawing look like?
1.01 (see Ms. Carlson's drawing)
Alaska got 53.8 inches of snow in 2023. In 2024, Alaska got 37.25 inches of snow. How much snow did Alaska receive over the two years?
91.05 inches
Val spends $16.37 at a store. She pays the cashier with a $20 bill and two quarters. How much change should Val get back?
$4.13
Write an equation that would represent a reasonable estimate for 68.6 - 9.1.
70 - 10 = 60 OR 69 - 9 = 60