Subtraction Showdown Practice Sheet
SUBTRACTION SHOWDOWN
Part 1: Smooth Sailing • No Regrouping Needed
Name:
Date:
Score:
Detective Tip: Always check the Ones place first! If the top digit is greater than or equal to the bottom digit, simply subtract each column straight down.
A Solve Column Subtraction • Subtract Ones, Then Subtract Tens
8 Problems
TO
58
-23
TO
76
-41
TO
94
-60
TO
87
-35
TO
69
-24
TO
45
-12
TO
88
-56
TO
93
-72
B Inspect the Problem • Check Regrouping, Show Work & Solve
Decision & Work
- 65 - 21
Regroup?
YES NO
Work Space:
Answer:
- 72 - 38
Regroup?
YES NO
Work Space:
Answer:
- 84 - 52
Regroup?
YES NO
Work Space:
Answer:
- 50 - 27
Regroup?
YES NO
Work Space:
Answer:
C Word Problem Missions • Show Your Work Below
Applied Thinking
13 Collector's Trade
Leo had 78 collectible cards. He traded 35 cards to his friend Maya. How many cards does Leo have left?
Workspace:
Sentence Answer: Leo has cards left.
14 Bakery Morning
The sweet bakery made 96 fresh cinnamon rolls. By 10:00 AM, customers had purchased 62 rolls. How many rolls are left?
Workspace:
Sentence Answer: There are rolls left.
SUBTRACTION SHOWDOWN
Part 2: Trade & Conquer • Regrouping in Action
Name:
Date:
Score:
The Unbundling Rule (Borrowing a Ten):
When the bottom digit is larger than the top digit in the ones place: cross out 1 ten from the tens column, unbundle it into 10 ones, and add it to your ones!
1 Ten = 10 Ones
D Regrouping Practice • Use the Top Boxes for Your New Digits
8 Problems
TO
63
-27
TO
82
-45
TO
50
-24
TO
74
-38
TO
91
-56
TO
43
-19
TO
85
-37
TO
90
-63
E Mixed Challenge • Look Carefully: Regroup Only When Needed!
Critical Eye
TO
78
-32
Regrouped? [ Yes or No ]
TO
61
-28
Regrouped? [ Yes or No ]
TO
86
-49
Regrouped? [ Yes or No ]
TO
95
-51
Regrouped? [ Yes or No ]
F Math Detectives in Action • Solve the Real-World Riddles
Regrouping Context
27 Zoo Bus Trip
A total of 82 second-graders are going to the aquarium. 47 students ride in Bus Alpha. How many ride in Bus Beta?
Workspace (Show borrowing):
Sentence Answer: students ride in Bus Beta.
28 Library Book Return
The school library had 65 graphic novels on the shelf. During morning check-out, students borrowed 38 of them. How many remain?
Workspace (Show borrowing):
Sentence Answer: graphic novels remain.
