Curated OER
Ten Sly Piranhas: A Counting Story in Reverse
Students solve related addition and subtraction problems. In this addition and subtraction lesson, students use the book Ten Sly Piranhas by William Wise as the source of word problems for students to solve.
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Musical Math
Learners play a game of mathematical musical chairs, moving from desk to desk solving addition and subtraction problems.
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What Do You Think?
In this estimating sums and differences worksheet, students solve 6 problems in which the answer to a 3 digit addition or subtraction problem is estimated. Students then solve the problem for an exact answer. There will be carrying and...
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Equal Additions
Students explore the relationships between numbers through the use of "equal addition" and "equal subtraction." Through the use of number sense, they are able to computer addition and subtraction problems mentally. Individually,...
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Fun Math 63
In this finding the difference worksheet, students subtract three-digits from three-digit numbers with regrouping on a page with fun clip art next to each problem. Students solve 15 problems.
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Fun Math 64
In this finding the difference worksheet, students subtract three-digits from three-digit numbers with regrouping on a page with fun clip art next to each problem. Students solve 15 problems.
Curated OER
Fun Math 65
In this finding the difference worksheet, learners subtract three-digits from three-digit numbers with regrouping on a page with fun clip art next to each problem. Students solve 15 problems.
Curated OER
The Number Partner
First graders study number pairs and identify number pairs that sum to numbers from 10 to 30. They use number pairs to solve addition and subtraction problems. They make sensible estimates and check the reasonableness of answers.
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Dinosaur Math
Second graders practice vocabulary related to measurement, mathematics, and dinosaurs. Using the engaging topic of dinosaurs, learners will calculate various information about dinosaurs and use measurement vocabulary. They will also...
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Use Negative Numbers
In this problem solving worksheet, students read and solve 6 story problems pertaining to borrowing and paying back money. Students use instead simple subtraction and addition. No answers will be negative numbers.
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Something's Hiding!
Second graders practice finding out how many tens and ones blocks are hidden from a given total. They mentally perform calculations involving addition and subtraction to explain the meaning of the digits in two to three digit whole numbers.
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Subtracting Twos (A)
In this subtraction review worksheet, students use problem solving skills to solve 21 problems that require them to subtract 2 from various 1 digit numbers.
School Mathematics Project
Resource Sheets
This extensive and far-reaching collection of worksheets puts a new twist on many basic concepts. Learners use multiplication to trace a path from one point to another, tile a plane by converting between improper and proper fractions,...
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A Frightening Mix of Math, A-Add or Subtract, But Look Out for the Monsters
In this math instructional activity, students add and subtract. Fifteen problems are subtraction, students subtract two digit numbers from three digit numbers. Regrouping is required. Twenty-one problems are addition, students add two...
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Booster (pg.10)
In this addition and subtraction worksheet, students work out and answer 2 word problems, answer 2 short answer problems and fill in the missing 4 digits in one addition and one subtraction problem.
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Not So Snappy 10
In this order of operations (i.e., addition, subtraction, multiplication, division) worksheet, students solve 3 word problems demonstrating their understanding of the concept.
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Duck Dominoes
In this fact family worksheet, 1st graders use the domino pictured to write problems. Students create 2 addition and 2 subtraction problems for each of the 4 dominoes represented. Students then solve for 8 single digit problems at the...
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Magic Math
In this addition and subtraction worksheet, students solve the one digit addition and subtraction problems and create its counterpart number sentence. Students complete 10 problems.
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Subtracting Large Numbers With Decimals
In this subtracting large numbers with decimals activity, 5th graders solve 10 subtraction problems with decimals and 4 to 7 digit numbers in multiple choice format, answers can be shown online.
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Subtracting Numbers up to 10
In this subtraction instructional activity, students complete a set of 20 single digit addition problems. An answer key is included on page 2.
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Subtracting Numbers Up to Ten--Speed Racing
In this subtraction activity, students subtract 20 single-digit math problems as fast as they can in 2 speed races. Students write their answers on the activity provided.
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Subtract by Finding Difference-Counting On
In this subtraction worksheet, students solve a total of 10 problems, first "counting on" to solve, then determining whether to partition or count on to complete additional problems.
Curated OER
Decimal Practice
In this decimal practice worksheet, students complete 20 addition, multiplication, division, and subtraction problems with 3 to 4 digit numbers.
Helping with Math
Addition: Number Bonds to 20
Pupils fill in the missing addend to an addition problem that adds up to 20. This number could be a one-digit or two-digit number. They complete a total of 41 missing addend problems. Answers are available.