Curated OER
Money Riddle
In this addition worksheet, students solve 11 problems in which a mystery number is added to another two digit number with the sum always being 100. After completing the problems a mystery message will be revealed.
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Tens Barrier Addition/6
For this addition worksheet, students solve 36 problems in which two digit numbers are added to one digit numbers. Problems may need to be rewritten and stacked to make it easier for students to regroup.
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Fractions and Percentages
In this fractions and percentages instructional activity, learners are given 4 mental test each with 8 problems including finding percentages, converting decimals and fractions to percentages, and adding, subtracting and multiplying...
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Year 4: More or Less
In this addition and subtraction worksheet, students write down one less than the numbers on the worksheet. In the second section, they write down one more than the numbers provided. Finally, they write down ten less than the numbers....
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Adding 4 to a Single Digit
In this addition worksheet, students solve 10 math problems in which they add the number 4 to a single digit number. The answers are on the second page.
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Add Nine to Two-Digit Number Year 3
In this finding the sums worksheet, 3rd graders add the numeral nine to two digit numbers using word problems, input forms, and number problems. Students solve 18 problems.
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Adding Greater Numbers
In this adding greater numbers activity, students solve 13 problems in which four numbers are added in a column. Most numbers are four or five digits; students will need to regroup more than once.
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Adding a Single Digit
In this problem solving addition worksheet, students add three digit numbers to one digit using regrouping. Students solve for 25 problems that are written horizontally on the page.
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Adding Three Numbers
In this addition worksheet, 2nd graders solve 11 three double-digit number addition math problems by lining up the numbers by tens and ones.
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Adding: Written Questions
In this problem solving worksheet, students answer addition questions. In this written questions worksheet, students solve ten problems.
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Adding Two- and Three-Digit Numbers
In this addition activity, 4th graders add together 13 two and three-digit numbers with two and three numbers in each addition math problem.
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Addition Starter Pack: Volume 1 Sample
In this single digit addition activity, students solve six addition problems with sums less than ten with pictures next to each numeral for counting.
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Add One-Digit Numbers to Two-Digit Numbers
In this addition review worksheet, students practice adding 1-digit numbers to 2- digit numbers as they solve 3 addition problems.
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Adding With Regrouping
In this regrouping addition worksheet, 2nd graders add 4 problems together, use tens and ones models, if needed, and circle yes or no if they had to regroup or not.
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Adding Vectors
In this vector worksheet, students solve ten problems given vector directions in kilometers for two distances. They use a given key that 1 cm=1km.
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Deciding When to Regroup
In this addition learning exercise, 2nd graders determine if they need to regroup or not in 3 word problems. Students circle their answers, yes or no, and write the tens and ones numbers in the blanks provided.
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Add 19 to Any 2-Digit Number
For this addition worksheet, students solve 18 problems in which the number 19 is added to a two-digit number. No hints or examples are provided.
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Add 29, 39, 49 To Any 2-Digit Number
In this addition worksheet, students solve 18 problems in which the number 29, 39, or 49 is added to a two digit number. There are no hints or examples. Problems are in horizontal format for mental math.
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Rounding
In this rounding numbers worksheet, students review how to round numbers and then practice by rounding the first set of numbers to the nearest ten using the number line. Students then round the second set of numbers to the nearest ten.
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Addition 0-10
In this addition worksheet, students problem solve twenty five addition equations adding numbers from one to ten together. Students show each step of their work as they go.
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Circle Drills 3
In this addition worksheet, learners complete four circle drills where they add numbers ranging from one through nine to the numbers nine, ten, eleven, and twelve.
EngageNY
The Geometric Effect of Some Complex Arithmetic 2
The 10th instructional activity in a series of 32, continues with the geometry of arithmetic of complex numbers focusing on multiplication. Class members find the effects of multiplying a complex number by a real number, an imaginary...
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How Many?
Working with numbers 1-10, beginning counters complete five exercises to help them hone their skills. They examine two sets of sports balls, circling the ones at various number positions. Next, they count a set of ladybugs, recording the...
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Addition Practice #1
Show young mathematicians that they are fully capable of mentally adding two-digit numbers. They start by solving 12 two-addend problems (all with two-digit numbers and aligned horizontally). There is no room to show work. Consider...