Curated OER
Adding 1 to a Single Digit
In this addition worksheet, students practice adding the number 1 to 10 single digit numbers. Students write the sum of each problem in the boxes provided.
Curated OER
Make a Match
Second graders examine the relationship between addition and subtraction. For this number sense lesson, 2nd graders practice their computation skills and use various strategies (including manipulatives and calculators) to add and subtract.
Curated OER
Fun Math Worksheet
In this addition worksheet, students add two, five digit numbers together to get a sum. Students complete 15 addition problems with and without regrouping.
Curated OER
Estimate Sums
In this estimating sums worksheet, students solve 6 word problems where they estimate the sum of 3 digit numbers by rounding to the nearest 10, 100 or 1000.
Curated OER
Matrix Addition
In this matrix worksheet, students add matrices containing four to nine numbers. Explanations and examples are provided. This two-page worksheet contains ten problems.
Curated OER
Inverse Relationship Between Addition and subtraction
First graders review number facts to illustrate the relationship between addition and subtraction. In this inverse relationship lesson, 1st graders write an addition sentence and then invert the numbers to show the subtraction fact.
Curated OER
Three-Digit Addition and Subtraction With Regrouping
Second graders access prior knowledge of addition and subtraction using two-digit numbers and calculate easily with them. In this three-digit addition lesson, 2nd graders learn to add and subtract three-digit numbers with and without...
Curated OER
Multiplying by Two-Digit Numbers
In this mathematics worksheet, 6th graders find the product of a given equation. Then they use an array and find the sum of the partial products. Students also use zeros as place holders when necessary.
Curated OER
Multiplication Facts for 2, 5, and 10
Students improve their multiplication skills by completing the multiplication equations for facts 2, 5, and 10. In this multiplication facts lesson, students use different colored markers to mark on a number line and skip count by 2s....
Curated OER
Same and Different
For this mathematics activity, students first complete the tens place and then add the rest. Then they continue the patterns and compare each column. Students also fill in the missing addends and solve various word problems by writing a...
Curated OER
Adding with Andy
A nicely-designed six-page packet of addition worksheets is here for you. Actually, it's a four-page packet. The final two pages are the answer keys. All 96 problems are one-digit addition problems and should provide good practice for...
Curated OER
Adding Ten Tiles I
Students practice this problem that needs a certain amount of experimentation (trial and error) to get any answer at all. In the process they practice their basic number facts. However, to get the complete set of answers Students need to...
Curated OER
Adding Decimals
Show scholars the practical uses of adding numbers with decimals as they add measurements and amounts of money. The first 12 equations are written vertically with half the sums requiring a dollar sign and half a unit of measurement. The...
Curated OER
Division of 3-Digit Decimal Numbers
Move that decimal up into the quotient! Mathematicians practice long division with three-digit dividends that have decimals to the hundredths place. All the divisors are single-digit numbers, and there are two examples demonstrating the...
DK Publishing
Adding with 3-digit Numbers #2
These 25 addition problems each have two 3-digit addends, and many require regrouping. There are three examples to guide learners in all the types of problems they encounter, including the last set of five which have four-digit sums....
Curated OER
Missing Addends
Where are all the addends? Addition novices solve 36 equations by filling in the single-digit addend to achieve the given sum. They reference several examples, each of which include object sets to help learners visualize the concept....
Curated OER
Smiling at Two Digit Multiplication!
How do I solve a two-digit multiplication problem? Your class tackles this question by walking through problem solving methods. They first investigates and applies traditional multiplication methods, and they then compare those with...
Curated OER
Two Digit Addition Worksheet #3: Find the Missing Number
In this addition activity, students solve 20 problems in which a missing number in the problem is filled in. Students analyze the two numbers that are provided and fill in the third to make the problem correct.
Curated OER
Numbers to 40
In this addition worksheet, students find the sums and differences in 10 vertical addition problems. They fill in the numbers in 10 word problems, circle the largest number and cross out the smallest number in 5 examples, and find the...
Curated OER
Santa's List Sums (C1)
In this Christmas math activity, students solve 17 problems in which the number of boys and girls on each street are added and the sum recorded on Santa's list. All numbers are below 10.
Curated OER
Addition Logic Exercise
For this addition problem solving worksheet, students solve 5 problems in which addition is involved. Students read the word problems, decide on a number sentence, and solve.
Curated OER
Radicals: Addition & Subtraction of Complex Numbers
In this radical worksheet, young scholars simplify complex numbers. They find the sum and difference of complex numbers. This two-page worksheet contains 11 multiple-choice problems. Answers are given on the last page.
Curated OER
Addition Logic Exercise
In this addition logic worksheet, learners answer a set of 5 logic questions related to simple addition. A reference website is given for additional resources.
Curated OER
More Addition in Your Head pg 1
Addition using mental math is the focus of this math worksheet. Students solve two and three-digit number problems, and attempt to do so without the use of pencil and paper. Twenty problems are solved. Answers appear at the end of the...