Curated OER
Horizontal Mixed Addition and Subtraction Using Numbers Between 1 and 100
In this addition and subtraction activity, students solve 10 problems in which two digit numbers are added or subtracted. Problems are in a horizontal format and may need to be rewritten. This is an online interactive activity that can...
Curated OER
Number Line Addition Problems
In this addition worksheet, students use a number line to help them find the sums to 12 single digit addition problems. They use a number line that contains the numbers 0 - 10.
Curated OER
Practice Doubling Numbers: 1-50
In this doubling activity, students solve 50 problems, either adding 2 of the same number together or following directions to "double" a number.
Curated OER
Santa's List Sums (D2)
In this Christmas math worksheet, students solve 15 problems in which two digit numbers are added, with and without carrying. This page has the theme of Santa's list.
Curated OER
Number Chart and Number Line
First graders research strategies for identifying numbers through 100. In this number recognition lesson, 1st graders make games, create puzzles,and fill in missing numbers to practice number identification.
Curated OER
Add Groups of Ten
In this addition worksheet, students add groups of tens and their remainders to determine the missing addends in the pairs of 2-digit problems and then find the sums. Students solve nine problems.
Curated OER
Adding two numbers
In this addition instructional activity, students complete 4 problems where they have to add two single digit numbers less than 10 together to find the sum.
Curated OER
Adding 9's (B)
For this addition review worksheet, students use problem solving skills to solve 50 problems that require them to add 1 digit numbers to 9.
Curated OER
Mental Arithmetic--Adding to Thousands
For this adding to thousands worksheet, students mentally add 12 problems as fast as they can without using paper and only writing down their answers. Students solve 3 additional addition problems and then explain what method they used...
Math Salamanders Ltd.
Addition - Adding on Tens Sheet 1
In this adding on tens activity, students add multiples of 10 to given numbers. A reference website is given for additional activities.
Curated OER
A Total of 10
In this addition review learning exercise, students practice adding numbers between 1 and 10. Students color the grids with addition sentences that have a sum of 10, 9, 8, and 7 according to the instructions.
Curated OER
One is a Snail, Ten is a Crab.
Students count by pairs and sets of feet, while reading a story that coincides with this practice. In this math lesson, students use their skills to count by multiples and adding on to numbers when they add up feet from humans, and...
Curated OER
Add 29, 39, 49 To Any 2-Digit Number
In this addition learning exercise, students solve 18 problems in which the number 29, 39, or 49 is added to a two digit number. There are no hints or examples. Problems are in horizontal format for mental math.
Curated OER
Add 19 to Any 2-Digit Number
In this addition worksheet, students solve 18 problems in which the number 19 is added to a two-digit number. No hints or examples are provided.
Curated OER
Addition to 10
For this addition worksheet, 3rd graders solve 24 single-digit adding problems. Students also solve 3 word problems which involve the addition of single-digit numerals.
Curated OER
Roman Numeration
Gain a deeper understanding of the base 10 system through practicing conversion to Roman numerals through one million. The class is taught how to read the numerals through modeling and guided practice. This lesson includes a homework...
Curated OER
Addition Drills, part 3
Here's an addition drill for scholars who are already comfortable with regrouping. There are 30 horizontally-aligned problems here, each with two 2-digit addends. Mathematicians use three examples as reference as they solve each of...
Curated OER
Doubles
These dragons work as math machines as scholars multiply numbers using given functions, which remain the same for these: double it. Using an example as their guide, learners double three whole numbers, none of which exceed 11, for each...
Illustrative Mathematics
1.OA, NBT, The Very Hungry Caterpillar
First graders are exposed to addition of three whole numbers in a math activity centered around Eric Carle's, The Very Hungry Caterpillar. As the teacher reads, young mathematicians use counters and ten-frames to symbolize the number of...
Curated OER
Column Addition practice 4.6
For this adding columns worksheet, students add two-digit and three-digit numbers, use symbols to compare pairs of addition problems, and solve word problems. Students solve nineteen problems.
Curated OER
Multiplying
There is a step-by-step example here to help young multipliers solve 12 equations, all of which have one 2-digit and one 1-digit factor. The method displayed encourages breaking the two-digit number into tens and ones, multiplying each...
Curated OER
Real-life Problems, Money, and Weight
Solve five word problems involving money and weight. After studying the example at the top, which demonstrates how to write out the equation in a word problem, fourth graders work on adding large numbers in money and measurement. Here is...
Curated OER
Addition with Regrouping
Now that your class can add, introduce them to adding with regrouping. This presentation provides several models that demonstrate what happens when you regroup. There are several examples and a few practice problems to complete as a class.
EngageNY
Writing and Expanding Multiplication Expressions
Find out what's so standard about standard form. Scholars learn to write multiplication expressions with variables in the 10th lesson plan in a series of 36. They use different symbols for multiplication and translate between standard...