Lesson 3-12 Practice
Name
Date
Lesson 3-12 Practice
Unit 3 Assessment Practice
Addition, Subtraction & Fact Power
Page 1
1
Write the fact family.
13 +, – 6 7
– =
– =
2
Maya is playing Salute!
The dealer says 14.
Her partner has a 6 on his forehead.
What number does Maya have?
How do you know? Explain your thinking.
3
Marcus is playing Subtraction Top-It. He takes a 15 and an 8.
Write the subtraction fact.
4
Solve.
a. 13 – 5 =
b. 11 – 7 =
c. Explain how you solved one of the facts above.
Unit 3 Practice • Addition & Subtraction Strategies Turn over for page 2
Name
Date
Lesson 3-12 Practice
Unit 3 Assessment Practice (continued)
Page 2
5
Solve.
Rule
+ 6
6
Elena made a 10 to figure out the sum for 7 + 5. Explain Elena’s thinking.
7
Subtract.
a. 6 – 0 =
b. 8 – = 7
c. – 0 = 12
d. – 1 = 15
Unit 3 Practice • Addition & Subtraction Strategies Complete
