Worksheet
Math Salamanders Ltd.

Missing Subtraction facts to 12 sheet 1

For Students 1st - 2nd Standards
Pupils subtract numbers one through 12 and complete missing addend problems. This worksheet includes a helpful number line and 20 problems to complete. Tip: Hand out unifix cubes or chips to help tactile learners solve each problem.
Worksheet
Math Salamanders Ltd.

Missing Subtraction Facts to 20 sheet 2

For Students 2nd - 3rd Standards
They can tackle this worksheet once your class has mastered basic double-digit subtraction. They'll need to find the missing subtraction facts to 20 that complete each problem.
Worksheet
Math Salamanders Ltd.

Addition - Up to 20 Sheet 5

For Students 1st - 3rd Standards
In this addition worksheet, learners complete missing addend problems by plugging in numbers one to 20. Students complete 40 problems.
Worksheet
Math Salamanders Ltd.

Multiplication - 8 Times Table Sheet 1

For Students 3rd - 6th Standards
In this multiplication learning exercise, students multiply numbers by eight and complete missing addend problems that contain the number eight. Students complete 30 problems total.
Worksheet
Math Salamanders Ltd.

Division to 10 x 10 Sheet 3

For Students 3rd - 5th Standards
Learners fill in the missing addends to the one and two-digit number division problems. They complete 40 problems. A classic worksheet!
Worksheet
Curated OER

Multiplication to 5 x 5 Sheet 3

For Students 3rd - 5th Standards
In this multiplication worksheet, students fill in the missing addends to complete the multiplication problems up to 5 x 5. Students complete 40 problems.
Worksheet
Math Salamanders Ltd.

Division Related Facts 10s and 100s Sheet 2

For Students 4th - 6th Standards
In this division worksheet, learners fill in the missing addends that are multiples of either 10s or 100s to the problems. Students complete 40 problems.
Worksheet
Math Salamanders Ltd.

Place Value - Hundreds, Tens, and Ones 4

For Students 3rd - 5th Standards
In this place value worksheet, students add numbers that are all in different place values and fill in missing addends for different place values. Students complete 40 problems where the numbers are in expanded notation form.
Worksheet
Math Salamanders Ltd.

Missing Subtraction Facts to 20 Sheet 1

For Students 1st - 2nd Standards
In this subtraction instructional activity, students use the given numbers to complete and solve the horizontal subtraction equations. Students solve 20 problems.
Interactive
CK-12 Foundation

Decimal Addition: Adding Little Pieces

For Students 4th - 6th Standards
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...
Interactive
CK-12 Foundation

Addition and Subtraction of Polynomials: Sliders

For Students 8th - 10th Standards
Slide the coefficients to determine sums of polynomials. The interactive contains sliders to change the coefficients of an addend in a polynomial addition problem. Pupils determine the coefficients of the addend to arrive at particular...
eBook
Savvas Learning

Saxon Math 5/4

For Teachers 3rd - 5th Standards
You'll never have to search for another worksheet again after downloading this extensive collection of Saxon math materials. With over 600 pages of example problems and skills practice exercises, this is a must-have resource...
Worksheet
Math Salamanders Ltd.

Multiplication - 2 Times Table Sheet 1

For Students 2nd - 3rd Standards
In this multiplication instructional activity, students multiply the number two by numbers zero through 10 and fill in missing addend multiplication problems involving two as well. Students complete 30 problems.
Worksheet
Math Salamanders Ltd.

Place Value - Tenths Sheet 5

For Students 5th - 8th Standards
In this place-value instructional activity, students add whole numbers to numbers that have decimals in the tenths place. Students complete 40 problems—half of these problems, they fill in missing addends.
Worksheet
Math Salamanders Ltd.

Addition - Up to 12 Sheet 4

For Students 1st - 2nd Standards
In this addition worksheet, learners solve horizontal addition problems. They count on to find the missing addend.
Worksheet
Math Salamanders Ltd.

Addition—Up to 12 Sheet 5

For Students 1st - 3rd Standards
In this addition activity, learners complete 24 problems, filling in missing numbers, either addends or sums. A reference website is provided for additional activities.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Boys and Girls, Variation 2

For Teachers 1st - 2nd Standards
Students are asked to solve a word problem with both addends unknown. They will write an equation and draw a picture to use to explain their answer.
Unknown Type
Math Slice

Math Slice Fast Sum

For Students 1st - 3rd Standards
This resource is a set of ten timed practice problems where parameters are selected for the sum and the range of addends. The sum and one addend are given and students determine the missing number to create the sum. Instant feedback and...