Curated OER
Follow the Decade Rules
In this number sense learning exercise, 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
Introduction: Picture Addition
In this addition worksheet, students learn how to do basic addition of numbers below 10 using pictures. First, students read through 6 practice problems in which the answers are included. Then, they solve 3 on their own.
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.
BBC
Simple Addition and Subtraction
Here is a wonderful lesson plan designed for young mathematicians. In it, they employ simple addition and subtraction strategies in order to solve word problems. There are some excellent activity sheets embedded in the plan to make the...
Curated OER
Identify Patterns
To complete these number patterns mathematicians must determine by what number each is constantly increasing. However, this isn't your typical skip counting; scholars count by numbers like 18, 60, and even 101 to fill in the missing...
Curated OER
Number Bonds to 10: Match the Hats
Practice and play this game to enhance your learner's ability to make the number 10 through addition. Each slide shows an equation with a missing addend and a party hat with a given number of dots, they need to determine how many dots...
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...
CK-12 Foundation
Decimal Addition: Adding Little Pieces
A five-question interactive test scholars' knowledge of adding and subtracting decimals. A tool aids in problem-solving with movable parts that reveal addends and sums. Question types include one discussion, fill and in the blank, and...
Curated OER
Online Math Problems and Estimation
For this online math problems worksheet, 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 problems by...
Curated OER
Tic Tac Toe Math Addition 4
In this tic-tac-toe math game activity, students practice their two-digit addition skills as they play two rounds of the math game with a partner.
Curated OER
At The Edge of Whole Thousands
In this whole thousands instructional activity, students determine how much is missing from a "thousand block" and write an addition sentence, then complete addition sentences by filling in missing numbers.
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
Addition
In this addition worksheet, students, without using a pencil and paper, solve 12 addition problems with 3 single digit numbers each. Students fill in the missing numbers in 4 addition problems.
Curated OER
Addition
In this addition worksheet, learners mentally add together 12 math problems involving addition with 3 numbers. Students fill in the missing numbers in 3 equations.
Curated OER
Balancing Number Sentences to Introduce Missing Values
Learners balance number sentences to learn about missing values. In this balanced equations lesson, students use the word problem to study missing values. Learners watch a video about the topic and play two games about balancing...
Curated OER
Tic Tac Toe Math Addition 2
In this tic-tac-toe math game worksheet, learners practice their one-digit addition skills as they play two rounds of the math game with a partner.
Curated OER
Math Puzzle Worksheet: Box Addition Version 2
In this math puzzle worksheet, students fill in missing numbers to help arrive at the correct addition totals that are given in columns and rows.
Curated OER
Christmas Missing Digits "F"
In this Christmas missing digits worksheet, students fill in missing numbers in 22 problems including addition, subtraction and multiplication. Answers are included.
Math Salamanders Ltd.
Addition—Up to 12 Sheet 5
In this addition activity, students complete 24 problems, filling in missing numbers, either addends or sums. A reference website is provided for additional activities.
Math Salamanders Ltd.
Addition - Up to 12 Sheet 7
In this instructional activity, students practice their addition facts by filling in the missing numbers in each box.
Curated OER
Missing Sums and Addends
In this recognizing two-digit addition facts worksheet, students use a number line and addition facts to find the missing sums or addends in problems with and without regrouping. Students solve 20 problems.
Math Mammoth
Multiply By Whole Tens And Hundreds 1
In this multiply by whole tens and hundreds learning exercise, students problem solve and calculate fifty seven equations either by writing the additions as multiplications, solving and comparing and/or filling in the missing factors.
Curated OER
Addition
In this addition worksheet, learners add the double digit addition problems. Students enhance their addition skills by solving the 31 problems.