Addition
Subtraction With Regrouping
Addition Equations
Subtraction Equations
Grab Bag
100
93 + 27= *Use expanded form!
120
100
97-18= *Use base-ten blocks.
79
100
The Nemmers family has 12 trees in their yard. The Bradford family has n trees in their yard. Together, the families have 28 trees. How many trees do the Bradfords have? 12 + n = 28
14 trees
100
Amanda collects dolls. Suzy has 5 fewer dolls than Amanda. Suzy has 16 dolls. How many dolls does Amanda have? n – 5 = 16
21 dolls
100
Estimate-Round to the nearest ten 349-156=
190
200
54 + 76= *Use base-ten blocks.
130
200
183-47= *Use expanded form
136
200
Write an equation to represent the following situation. Mario had 26 action figures. Hank gave n more action figures to Mario. Now Mario has 37 action figures.
26 + n = 37
200
Write an equation to represent the following situation. Barb had 35 books. Jean borrowed n books from Barb. Barb now has 27 books
35 - n = 27
200
Estimate-Round to the nearest ten 579+219=
800
300
528+396= *Use the open number line.
924
300
300-63= *Use the open numberline.
237
300
Find the value for n that makes the equation true. 6 + n = 20
n = 14
300
Find the value of n that makes the equation true. n – 65 = 390
n = 455
300
Name five addition key words and five subtraction key words.
Teacher will check.
400
347+456= *Use regrouping and one other method of your choice.
803
400
773-456= *Use regrouping and one other method of your choice.
317
400
Find the value for n that makes the equation true. 381 = 301 + n
n = 80
400
Find the value of n that makes the equation true. 75 = n – 3
n = 78
400
Draw a part, part, whole diagram to represent the number story below. Solve the number story with your favorite method. There were 346 bones in the graveyard. A ghost stole 159 of them. How many bones were left?
187 bones were left. The teacher will check the diagram.
500
739+668= *Use regrouping and one other method of your choice.
1,407
500
604-398= *Use regrouping and another method of your choice.
206
500
Sarah read for 25 minutes more than Leo. Sarah read for 160 minutes. How many minutes did Leo read? n + 25 = 160
n = 135
500
Tim has 180 toy cars. He gives his sister some of the toy cars. If he has 110 toy cars left, how many toy cars did he give his sister? 180 – n = 110
n = 70
500
Demonstrate how to check your answer by using the inverse operation. 137 + 456 =
Answer: 593 Check with subtraction.
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