Royal Society of Chemistry
Sub-shells
Is your class in a quandary over quantum numbers? Change things up by adding games to the mix! Science scholars discover the shape, number of electrons, and number of orbitals in the s, p, and d sub-shells using an interactive.
Curated OER
Adding Fractions
Each of these 20 fraction pairs needs to be totaled, but that's not all there is to do! Scholars find the least common denominator first, then reduce the answer to simplest form if needed. These practice problems are excellent in the...
Math Antics
Working with Parts
Get a clearer picture of working with fractions. While continuing to work with fractions as parts, the video shows how to use drawing to compare and add fractions. Worksheets then provide opportunities for pupils to practice comparing,...
Illustrative Mathematics
Many Ways to Do Addition
A great aspect of teaching math is that children have the freedom to solve problems using a variety of different strategies. The focus of this lesson plan is for young mathematicians to become aware of many ways of answering addition...
EngageNY
Opposite Quantities Combine to Make Zero
Find the cards that get to zero. The activity introduces the class to the idea of adding integers. Pupils use a number line to count up and count down when adding. They play a game to collect cards that will sum to zero.
Curated OER
Adding Ten
In this addition learning exercise, 1st graders practice adding 10 to single digit numbers to find the sums in 14 horizontal problems. They work on a page that is decorated with a clip art bunny and duck.
Curated OER
Adding Ten
In this addition activity, students practice adding 10 to single digit numbers to find the sums in 14 horizontal problems. They work on a page that is decorated with a photographs of a duck and a bird.
Curated OER
Adding Decimal Numbers
In this problem solving worksheet, 3rd graders solve 8 mathematical addition problems involving the addition of decimal numbers.
Curated OER
Adding by 3's
In this adding by 3's worksheet, students start with different numbers in number lines and count by 3's to the end number in the line. Students complete 14 number lines.
Curated OER
Adding by 3's
In this adding by 3's worksheet, students fill in the blanks to number lines that are adding by 3's but all starting with different 2 digit numbers. Students complete 14 number lines.
Curated OER
Solving Positive and Negative Numbers
In this positive and negative numbers worksheet, students solve 60 problems in which integers are added or subtracted. There are no hints or examples.
Curated OER
Adding Decimals
In this adding decimals worksheet, students add numbers with decimals that are 2 digit numbers. Students complete 10 problems.
Curated OER
Adding Decimals
In this decimal addition instructional activity, students solve 20 problems that require them to add 2-digit decimal numbers to 2-digit decimal numbers.
Curated OER
Adding Ten
In this addition worksheet, students solve 20 problems in which the number 10 is added to a single digit number. There are no examples.
Curated OER
Adding 10
In his adding 10 worksheet, students find sums, adding 10 to one-digit numbers and solving 4 word problems. A website reference for additional resources is given.
Curated OER
Adding Decimals 2
In this adding decimals practice worksheet, students use their math skills to solve 15 equations that require them to add and subtract decimal numbers.
Curated OER
Adding Fractions
In this adding fractions learning exercise, students add fractions that contain one digit numbers and reduce them to their smallest terms. Students complete 18 problems.
Curated OER
Count and Add One More
In this count and add one more worksheet, students count the chair, add one more and enter the sum, interactively with immediate feedback.
Curated OER
Adding One
In this addition worksheet, learners solve a total of 25 problems using 1-digit numbers and adding 1. A website reference for additional resources is given.
Curated OER
Arithmetic Operations with Negative and Positive Numbers Review
In this arithmetic operations review worksheet, students review basic arithmetic operations with both positive and negative numbers. The worksheet shows adding real numbers, subtracting real numbers, multiplying real numbers and dividing...
Curated OER
Adding Decimals
In this math worksheet, students solve 32 double digit decimals problems. There is some regrouping required. The problems are already lined up vertically.
Curated OER
Adding Decimals
For this addition worksheet, student find the sums of 15 vertical addition problems which include decimals to the hundred thousandths place. They add whole numbers and decimals.
Curated OER
Adding by 5's
In this adding by 5's worksheet, students complete number lines by filling in the blanks to number lines that count by 5's. Students complete 14 number lines.
Curated OER
Adding by 2's
In this adding by 2's worksheet, students start with a 2 digit number and count by 2's in the number lines. Students complete 14 number lines.
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