Math Salamanders Ltd.
Subtraction - Up to 20, Sheet 3
In this finding the differences worksheet, students subtract one-digit and two-digit from numbers to twenty. Students solve 40 problems.
DK Publishing
Real-Life Word Problems
Prepare your second graders for word problems with a straightforward review learning exercise. Use it after a unit on addition and subtraction up to 100, or after you have worked on money math. A sample word problem prompts young...
Curated OER
Picture Graphs
An innovative way to practice reading data, as well as the four operations! Three picture graphs prompt first graders to count marbles, books, and pets. They also solve addition and subtraction problems. Additionally, they work on...
Education Development Center
Geography of the Number Line
It's more than just numbers on a line, its an organizational, mental math machine to help learners understand the value of numbers. The tool is handy when introducing positive and negative integers to see their values and relationships....
DK Publishing
Subtraction Practice #2
Do your second and third graders need more subtraction practice? Use a worksheet to help them master their subtraction skills with two digit numbers. The first section involves straightforward subtraction problems, while the second...
Curated OER
Algebra: Addition and Subtraction Equations: Practice
In this addition and subtraction equations worksheet, students use mental math to solve the addition and subtraction equations. Students then answer two test prep questions.
Curated OER
Mental Subtraction Methods
In this math worksheet, students learn a strategy to mentally subtract a single digit number from a two digit number such as 53-8. Students follow the detailed instructions to subtract in 18 problems.
Curated OER
Finding a Way
In this mental math worksheet, 3rd graders use mental math to find and solve each missing product, sum and/or difference in each of the 4 paths. Students answer 1 short answer question relating to the paths.
EngageNY
One-Step Equations—Addition and Subtraction
Just one step is all you need to find success in solving equations. The 27th installment in a series of 36 teaches how to solve one-step equations involving addition and subtraction. Tape diagrams help future mathematicians in this task.
Curated OER
Mental Arithmetic
In this mental math activity, students answer 2 sets of mental math questions about writing whole numbers, place value, counting back and on in tens and addition and subtraction.
Curated OER
Mental Subtraction Methods
In this subtraction worksheet, students subtract problems using mental math methods such as tens groups, comparing problems, helping numbers, and more. Students complete 7 sets of problems.
Curated OER
Subtracting 2-Digit Numbers Mentally
In this subtraction instructional activity, students subtract 2 digit numbers from each other using mental math. Students complete 12 problems and 9 comparison problems.
Curated OER
Mental Tests: Basic Operations
In this mental math worksheet, students answer problems using the four operations: addition, subtraction, multiplication & division. Problems are grouped in ten for a quick review.
Curated OER
Mental Maths
For this counting worksheet, students complete 22 fill in the blank problems where they are given a starting number and count by 1's, 2's, and 10's. Next. students answer 12 fill in the blank addition or subtraction problems where they...
Math Salamanders Ltd.
Subtraction Up to 20 — Sheet 2
Challenge your class with 20 subtraction problems. Learners will subtract single and double-digit numbers up to 20 with a number line.
Curated OER
Mental Math Strategies
In this mental math worksheet, students read an information box that explains how to use breaking apart or compensation to solve addition or subtraction problems. Students add or subtract using mental math in 8 examples.
Curated OER
Mental Math Strategies
In this mental math worksheet, students study the detailed instructions and examples for adding or subtracting numbers using "breaking apart" or compensation. Students solve 17 mental math problems.
Curated OER
Subtraction Worksheet: Numbers to 19
For this subtraction worksheet, students solve 36 problems in which numbers below 20 are subtracted. The minuend has two digits and the subtrahend has only one.
Math Mammoth
Mental Math in Percent Problems
In this math worksheet, learners are given 21 percentage problems which they are to work out mentally. There are story problems, tables and simple conversion.
Curated OER
Mental Math Blocks 2
In this math worksheet, students solve eleven math problems. Students solve the problems by using multiplication, division, subtraction, and addition.
Los Angeles County Office of Education
Assessment for the California Mathematics Standards Grade 2
Test scholars mathematic skills with an assessment addressing addition, subtraction, multiplication, place value, measurement, geometric shapes, expanded notation; and their ability to compare numbers, write number sentences, draw...
Curated OER
Addition and Subtraction
In this finding the sums and differences of horizontal problems worksheet, students add and subtract one-digit and two-digit numbers using mental math. Students solve 242 problems.
Curated OER
Add or Subtract (up to 50)
Do you add or subtract? It's up to your mathematicians as they fill in the symbol for 16 equations to make them true. The numbers in this section don't exceed 18. Next, learners answer six word problems by determining the missing addend...
Curated OER
Using Doubles
Bring this easy shortcut to your first grade addition lesson! By adding doubles (6+6, for example), and then adding or subtracting 1, kids learn how to solve simple addition problems with ease. This trick is especially helpful for...