Curated OER
Missing addend - sums with 8 and 9
In this missing addend activity, 2nd graders are given the sums of 8 or 9 and they have to write the missing addends to the addition problem given to them represented by cubes. Students complete 16 problems.
Curated OER
Sums of 8 and 9
In this addition instructional activity, students solve a total of 25 problems using 1-digit numbers with sums of 8 or 9. regrouping. A website reference for additional resources is given.
Curated OER
Missing Addends-Sums with 8 and 9
In this missing addend worksheet, students fill in one missing addend in a problem in order to arrive at a given sum. All sums equal either 8 or 9. Worksheet has a reference web site for additional activities.
EngageNY
Sums and Differences of Decimals
Sometimes dealing with decimals is so much easier than dealing with fractions. The ninth lesson in a 21-part module has the class consider situations when it might be easier to add or subtract fractions by first converting to decimals....
Curated OER
Missing Addend Sums With 8 and 9
In this addition worksheet, students complete problems with sums of eight and nie. students solve 12 problems, solving for the missing addend in each.
Curated OER
A Sum of Functions
Collaborative learners will see the geometric addition of functions by graphing the sum of two graphed curves on the same coordinate plane. This task then naturally flows into giving learners the algebraic representation of the curves...
Curated OER
Missing Addends: Sums With 8 and 9
In this missing addends worksheet, students fill in missing factors in addition problems. All problems have sums of 8 or 9. A reference web site is given for additional activities.
Curated OER
Using 10 to Add 7, 8, and 9
In this adding worksheet, learners learn to make a ten when adding the numbers 7, 8,or 9. After looking at the examples, students solve 10 problems with addition facts.
Curated OER
Find the Sums (Under 100)
All of these sums are under 100: learners practice with three types of addition problems, each with two equations. First, they add a double-digit and single-digit number. Then, scholars add two double-digit numbers, one being a multiple...
Curated OER
Estimating Sums and Differences
Work on rounding, estimating, adding, and subtracting with a helpful math worksheet! Fifth graders study different sets of addition and subtraction problems, and after rounding each number to the leading digit, they estimate what the sum...
Curated OER
Add Mixed Numbers With Like Denominators Worksheet
Practice adding mixed numbers with like denominators with your upper elementary schoolers. The cartoon figure at the top of the page reminds learners how to tackle the problem. There are 14 problems listed.
DK Publishing
Addition with 3-Digit Numbers #1
Once your mathematicians can add two-digit numbers, it's time to bring on the three-digit addends. Here are 20 practice problems, each involving two whole-number addends. Learners do not need to regroup for any of these, and they have...
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
Divisibility Tests for 3 and 9
Who knew the sum of a number's digits gives such interesting information? The 18th installment of a 21-part module has scholars investigate division by three and nine. After looking at several examples, they develop divisibility tests...
Curated OER
Sums With Tens
In this addition worksheet, 1st graders find the sums in 9 problems in which they double a multiple of 10, such as 60 +60 =. They add 11 plus 11 in the last problem.
Curated OER
Subtract Fractions with Unlike Denominators
In this subtracting fractions instructional activity, youngters learn to find equivalent fractions using a common denominator. They solve 11 problems in which simple fractions with unlike denominators are subtracted.
Education Development Center
Sum of Rational and Irrational is Irrational
Sometimes the indirect path is best. Scholars determine whether the sum of a rational number and an irrational number is irrational. Reading a transcript of a conversation between classmates leads to an indirect proof of this concept.
Geometry Accelerated
Accelerated Geometry Review Sheet
Your geometry learners use their knowledge of various geometric concepts to write proofs. Starting with givens containing parallel line segments with transversals and triangles and quadrilaterals, and the mid-point and distance formulas;...
Illustrative Mathematics
Find the Missing Number
First graders are asked to find the missing numbers in subtraction and addition equations. Each missing number is represented with a box and appears as an addend, subtrahend, sum, or difference.
Curated OER
Operations with Decimals
Help your learners get practice with operations involving decimals. They will follow prescribed steps that require them to use mixed operations to solve problems with decimals. Great for practice after pupils have had comprehensive...
Curated OER
Making 10 to Add 7, 8, and 9
In this math worksheet, students solve addition problems with 7, 8 and 9 by using a ten-frame and counters. Students follow the detailed directions for addition on the page. There are also 5 activities to do with a study buddy.
Curated OER
Colorful Partners
For this addition worksheet, students study a 25 square grid with addition problems. Students color sums of 7 red, sums of 8 blue and sums of 9 green.
Curated OER
Estimating Sums of Money
By rounding, scholars find that adding money amounts becomes a breeze! They round two and three-digit numbers (with decimals) in these addition problems to get approximate sums. For each, mathematicians write the new addition equation...
Curated OER
Add Mixed Numbers With Like Denominators (B)
In this adding mixed numbers worksheet, students find the sums by adding mixed numbers with common denominators and reducing the answer to lowest terms. Students solve 7 problems.