Curated OER
MathKeys Software "Unlocking Whole Numbers, Vol. 11(Place Value for Four Digit Numbers)"
Third graders explore the place values of four digit numbers by writing four digit numbers and examining the effects of rearranging the numbers' digits. They practice making their four digit number with base-ten blocks then rearrange the...
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Subtraction: Two Digit by Two Digit - No Regrouping
In this subtraction worksheet, 2nd graders find the differences in 30 two digit by two digit problems in which they do not have to regroup.
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Addition: Number Bonds to 40
In this addition and subtraction worksheet, students use their problem solving skills to solve 41 problems as they fill in the missing numbers in each of the problems.
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Addition and Subtraction Word Problems
For this addition and subtraction word problems worksheet, students solve 22 word problems that require them to subtract using 2, 3, and 4-digit numbers.
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Addition: Number Bonds to 100
For this addition worksheet, students fill in the missing addend for problems that add up to 100. Students complete 41 problems.
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Multiplication and Division Drills
In this multiplication worksheet, students complete multiplication problems including numbers up to 3 digits. Students complete 16 problems total.
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Two-Digit Numbers: 10 More or 10 Less
Complete the sequence by adding or subtracting 10! Although the instructions are slightly vague, the idea is that learners are given a starting number and fill in four sequential numbers by either adding or subtracting 10. The first four...
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One-Digit Multiplication
Students multiply the numbers one through ten by four, construct multiplication problems using physical materials, and recognize multiplication as repeated addition. They practice by playing multiplication Bingo.
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Addition and Subtraction, Multiplication and Division Review
Students must use their mathematical reasoning skills in order to make four math statements true by filling in the boxes with the correct digits. Addition, subtraction, multiplication, and division problems appear.
Math Salamanders Ltd.
Adding 1s, 10s, 100s, and 1000s
For this addition activity, students complete a 13-row chart. They start with three or four-digit numbers and add 1, 10, 100, or 1000 to each number to fill in the chart. The last four questions require subtraction because the initial...
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Addition Facts With Sums to 18
Students explore addition facts with sums to 18. Using Unifix cubes, students demonstrate addition sentences. They use a variety of manipulatives to illustrate addition facts for different sums. Students participate in a flash card game...
Alabama Learning Exchange
Introduction to Division
Examine how addition, subtraction, multiplication, and division relate to and are separate from each other. As they listen to the book, The Doorbell Rang, they demonstrate the math described in the story by cutting up paper cookies and...
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Adding in Our Heads
A good presentation on adding two-digit numbers. Learners are shown how to partition the numbers before trying to add them in their heads. A frog is the featured teacher of the PowerPoint, and he leads viewers through many problems and...
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What Numbers Do Digits Represent
In this place value worksheet, students write down the value of the number underlined in the larger numbers. For example, 390 945 will be provided and students write down 40. They then use a calculator to solve addition and subtraction...
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Subtraction: Two Digit By One Digit With Regrouping
In this subtraction instructional activity, 3rd graders find the differences to 30 problems in which they subtract a one digit number from a two digit number. They regroup as needed.
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Subtraction: One Digit from Two Digits With No Regrouping
In this subtraction worksheet, 3rd graders find the differences to 30 problems in which they subtract a one digit number from a two digit number. They regroup as needed.
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Adding: Single Digit
In this addition worksheet, students add numerals one to seven. In this matching worksheet, students match four equations to their sums.
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Adding: Single Digit
In this addition worksheet, students find the sums and match them to the problem. In this matching worksheet, students answer four problems.
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Apple Addition
In this addition worksheet, students add simple one-digit numbers. They write their sum in the apple below the equation. Addition facts zero through eight are represented. Sums to extend to eighteen. Twenty-five problems are on each...
West Contra Costa Unified School District
Divisibility Rules Justified
How do you know if a number is divisible? Instructors first prove the divisibility rules for three and four and then class members use this modeling to prove given divisibility rules for eight and nine either individually or in groups.
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Counting by 3s, 4s, and 5s
Skip count along the mushrooms to complete these number sentences which give young scholars an introductory look at addition and subtraction. Starting from five double-digit numbers, they subtract or add by threes, fours, and fives to...
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Adding Dice
Roll the dice! These addition number sentences are for beginning mathematicians, and each addend is displayed on a die. Learners add up two or three single-digit addends to find eight sums in the first half of this activity. Next, they...
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Adding and Subtracting
Adding and subtracting 100 is a breeze once scholars understand the role place value plays in this math process. They examine four examples before adding 100 to 24 numbers and subtracting 100 from 24 more. If you haven't yet covered...
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Four + One = Five
In this algebra worksheet, students decipher a cryptarithm to make an addition problem. They have to figure out what digit each letter represent to be able to solve this problem. There is an answer key with this problem.