Curated OER
Subtraction fact number sentences
In this subtraction learning exercise, students complete subtraction word problems where they find the correct number sentence to go with the problem. Students complete 10 multiple choice questions.
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Joining Hands
Second graders explore the inverse relationship of addition and subtraction in a "hands-on" activity based on the fact families of ones, twos and threes.
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Sums 2
In this early childhood addition practice learning exercise, students use their problem solving skills to solve 8 problems that require them to add 1 and 2 digit numbers.
Concord Consortium
Calculator Numbers
Know thy calculator. Young mathematicians use their calculators to answer a set of questions. They consider how the number of digits the calculator displays affects the answers to calculations. They then find examples of computations...
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Addition
In this addition instructional activity, students use number blocks and dice add the single digit addition problems. Students solve 24 problems.
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Addition
In this addition worksheet, students count the dots on each domino and fill in the missing numbers to complete the addition facts for the 13 problems.
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Subtraction Facts -1 to 10
In this math worksheet, students solve the problems using the operation of subtraction to find the differences. The sheet is ideal for drilling exercises.
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Addition and Subtraction Practice
In this addition and subtraction worksheet, students solve 5 problems set up in horizontal form, then solve 5 word problems. All problems add or subtract using 4 digit numbers.
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Addition Math Lesson Plan
Students write a math lesson plan with manipulatives, drill and practice, and assessments. In this math lesson plan, students do this for addition.
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Balancing Discoveries
Learners use a balance to help them with their addition facts. In this addition lesson plan, students also play the seven up game to memorize their facts.
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Number Lines
First graders examine the number line as an addition strategy. In this math activity, 1st graders create a number line and use it to help them solve addition problems.
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How Much is a Name Worth?
Second graders use simple addition facts to compute a value to their name. They add larger numbers to compute the combined value of all the names in their group. Finally, they use the group totals to compute the combined value of all the...
Curated OER
The Part-Adder 2
Third graders use mental-math strategies to solve two-digit plus two-digit addition problems. They observe and discuss online demonstrations, solve word problems as a class, and independently solve problems and describe their solutions...
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Basketball: Number Sense
Third graders explore their addition and subtraction skills. In this number sense lesson, 3rd graders analyze different scoring possibilities for a basketball game. This lesson incorporates the use a video titled "Blossom and...
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Family Names
In this fact family learning exercise, students examine a blank math cube with 10 squares. Students color some cubes red and some blue, then write a fact family for the numbers.
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Adding Ten
In this addition worksheet, learners solve 12 problems in which the number 10 is added to a single digit. The page has animal photographs.
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Adding Zero
For this addition worksheet, students solve 12 problems in which zero is added to a number below 8. The page has photos of tropical fish.
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Commutative Property
First graders use various models to learn the Commutative Property of Addition. In this Commutative Property activity, 1st graders use other students, counters, balances, and dominoes to apply the addition property. Students solve...
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Part-Part-Whole
First graders work with partners, using cubes to make addition sentences. In this math lesson, 1st graders separate cubes into 2 parts and discuss the relationship to addition sentences. Students practice separating cubes. Students make...
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Multiplying in Any Order
In this mathematics worksheet, 2nd graders use counters to show an array. Then they write the multiplication fact for that array. Students also identify if the reverse of a multiplication fact is equal and explain why.
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Nutty Numbers
In this fact families learning exercise, 1st graders solve 6 problems in which the missing numbers in addition and subtraction fact families are written in the nut shapes.
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Complete the Table--Rule: Add 4
In this addition activity, students add the number 4 to each of ten one digit numbers in an in/out table. Students write their answers on the chart.
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Profit/Loss Worksheet
In this profit and loss worksheet, students practice their addition and subtraction skills as they use cost price and selling price to determine the net profit of loss in 20 problems.
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Part Part Whole
First graders solve number sentences. In this problem solving instructional activity, 1st graders construct addition sentences using a part part whole mat. Students demonstrate problem solving strategies using cubes.