Math Drills
2-Digit ± 1-Digit Review
C-4Word Problems
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What this worksheet covers
- Topic
- 2-Digit ± 1-Digit
This unit practices adding or subtracting in the ones place while the tens place stays untouched. It splits into addition without carrying and subtraction without borrowing, and gathers only forms such as 24 + 3 and 38 - 5, where nothing crosses into the next place.
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Answering 54 for 24 + 3 shows a place-value mix-up, with the single-digit number added to the tens. A changed tens digit in the answer identifies this pattern. In Word Problems, children sometimes add the two numbers when asked what is left, producing an answer with too many digits.
This unit combines the tens-place calculation from Adding and Subtracting Tens with work in the ones place. In Calculations with 3 Numbers, it is not the place value that grows but the count of numbers, from two to three, and the practice turns to working through single-digit numbers one after another.
- Addition (No Carrying) · Word Problems3 questions
- Subtraction (No Borrowing) · Word Problems3 questions
Questions & answers
Problems and answers on this worksheet
These are the problems in “2-Digit ± 1-Digit”, shown with their answers.
(1)22 chicks are in the henhouse. If 5 more hatch from eggs, How many will there be in all? Answer □
Answer: 27chicks
(2)At a birthday party, Chloe has 14 blue balloons. If a friend brings her 5 more, How many will there be in all? Answer □
Answer: 19balloons
(3)At the bakery, Ethan made 72 pies. If he makes 6 more, How many will there be in all? Answer □
Answer: 78pies
(4)In the school lunchroom, 67 cups were lined up. 4 were put away on the shelf. How many are left? Answer □
Answer: 63cups
(5)In the flower field, 76 red flowers were blooming. Chloe picked 4. How many are left? Answer □
Answer: 72flowers
(6)In Sam's pencil case, there are 27 pencils. He used 5 for studying. How many are left? Answer □
Answer: 22pencils
What to do next
More worksheets in this unit
Addition (No Carrying)Addition (No Carrying) Fill in the Blank
Addition (No Carrying)Addition (No Carrying) Word Problems
Subtraction (No Borrowing)Subtraction (No Borrowing) Calculation
Subtraction (No Borrowing)Subtraction (No Borrowing) Fill in the Blank
Subtraction (No Borrowing)Subtraction (No Borrowing) Word Problems
2-Digit ± 1-Digit Review2-Digit ± 1-Digit Review Calculation
2-Digit ± 1-Digit Review2-Digit ± 1-Digit Review Calculation
