Illustrative Mathematics
Toll Bridge Puzzle
Here is a great problem-solving activity for young mathematicians. Intended solely for instructional purposes, the activity is appropriate for learners to add four numbers together. Not only must they add four numbers together,...
Math-U-See
Algebra 1 Readiness Test
Your learners will appreciate this assessment of basic skill calculations that are prerequisite to Algebra1. Adding, subtracting, multiplying, and dividing procedures are addressed in conjunction with whole numbers, decimals, fractions,...
Curated OER
Fractions of A Pizza
Young scholars view a large illustration of a pizza with parts of velcro. In this addition and subtraction of fractions lesson, students solve problems based on the pieces missing from the pizza. Young scholars take a fraction quiz....
Curated OER
Follow the Decade Rules
In this number sense worksheet, students find the missing numbers. Students are to find the missing number or numbers using the rule supplied, or find the rule for the numbers supplied to complete each of the eight charts.
Curated OER
Inverse Relationships (10)
In this addition and subtraction fact families worksheet, students identify the missing numbers in the inverse relationships. Students solve 60 problems.
Curated OER
Missing Subtraction Facts to 12
in this subtraction facts activity, students complete a total of 26 problems, filling in missing numbers using facts to 12. A reference web site is given for additional activities.
Math Worksheets Land
Unknown Numbers in Sums and Differences
You've hit the word problem jackpot with this set of 10 addition and subtraction scenarios! For each, learners have to find a missing number. Sometimes it is the sum or difference, and for others, an addend or minuend. For each, there is...
Curated OER
Online Math Problems and Estimation
In this online math problems learning exercise, students complete a variety of exercises including finding the missing numbers in eight math problems, two money and estimation calculations and estimating the difference in ten math...
Curated OER
Find the Difference--Mental Arithmetic
In this subtraction worksheet, 3rd graders solve 4 subtraction problems mentally and then write their answers in the boxes provided. Students fill in the missing numbers in 11 problems and explain how they got to their answers in the...
Curated OER
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.
Curated OER
Subtraction With Negative Results
In this subtraction worksheet, students solve 80 problems in which a single digit number is subtracted from another number that is smaller. The answers will be negative numbers.
Curated OER
Balancing Number Sentences to Introduce Missing Values
Students balance number sentences to learn about missing values. In this balanced equations lesson, students use the word problem to study missing values. Students watch a video about the topic and play two games about balancing...
Curated OER
Subtraction Word Problems
In this subtraction word problems worksheet, students show their work and solve a total of 5 problems. Answers are included on page 2.
Curated OER
Subtraction-2-Digit Numbers, Sheet 4
In this subtraction worksheet, learners use subtraction facts to find missing numbers in problems. A reference web site is given for additional activities.
Curated OER
Christmas Missing Digits "F"
In this Christmas missing digits worksheet, learners fill in missing numbers in 22 problems including addition, subtraction and multiplication. Answers are included.
Curated OER
Addition: Number Bonds to 30
In this addition worksheet, students fill in the missing addend to an addition problem that adds up to 30. This number could be a one or two digit number. Students complete 41 missing addend problems.
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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.
Curated OER
Subtraction Tree
In this math puzzle worksheet, students use their problem solving skills to respond to 6 questions that require them to use subtraction.
Math Salamanders Ltd.
Missing Subtraction Facts to 12 Sheet 2
For this subtraction instructional activity, students use the given numbers in the equation to solve the subtraction equations. Students solve 20 problems.
Curated OER
Math: Navigating the World Around Me
Young mathematicians research and discuss real world math word problems and ways in which they apply math concepts in their everyday lives. They create a storyboard of a math word problem from which they create a slide for a multi-media...
Curated OER
Placing Negative Numbers on a Number Line
Students plot numbers on a number line. In this negative numbers lesson plan, students create their own number line. Students discuss the concept of negative numbers and plot some on their number lines. Students create true and false...
Curated OER
Missing Digits Worksheet Maker 2
In this missing digits worksheet, students complete addition, subtraction, and multiplication problems by finding the numbers that are missing. There are 9 problems. This is also a link for how to make more worksheets like this.
Curated OER
Playing Math Fever
Pupils complete activities to learn notation and uses for positive and negative numbers. In this number system instructional activity, learners play a game similar to Jeopardy to learn how to solve problems with positive and negative...
Curated OER
Mentally Add and Subtract 10 or 100
Don't let the title of this one fool you; scholars skip count only by 10 in this number sequence worksheet. They fill in missing numbers on a number line to complete each sequence, adding or subtracting 10. There are two addition...