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Curated OER
Mystery Math
Here is an interesting "trick" your young mathematicians can perform. They are taught how to find any number's "digital root," by following a set of detailed instructions. The process works for any number, and is the type of math puzzle...
Raytheon
Adding and Subtracting Decimals
For this adding and subtracting decimals instructional activity, students add and subtract numbers with decimals in word problems. Students complete 12 word problems.
Primary Junction
Adding Tens
Build on your learners' confidence in quick addition as they discover strategies to add tens to two-digit numbers. After reviewing counting by 10's, they discuss tactics to add multiples of 10 to other numbers. They visualize how to...
Maths Blog
Make 20
There are quite a few ways to make the number 20 through addition. Learners fill in missing addends to reach the sum of 20 then answer additional related questions. This is a good resource because it has the class both add to 20 and...
EngageNY
Scientific Notation
Young mathematicians learn how scientific notation is meant to save time. Part 10, out of a series of 15, asks scholars to recognize the correct use of scientific notation and finish by adding and subtracting numbers using...
Curated OER
Adding Decimals
Explore the practical uses of adding numbers with decimals as scholars add measurements and money. The first 12 equations are written vertically with half the sums requiring a dollar sign and half a unit of measurement. The next six are...
Curated OER
Money
Which coins do you need? Scholars are faced with a challenge: using only three coins they must find the exact amount needed for six items. The coins are standard US currency and are pictured at the top, however their value is not listed....
Curated OER
Fraction Follies
Explore the multiplication and division process for fractions with this interactive presentation. Through visual fraction problems, your math learners will uncover common assumptions and errors in computing fractions and how to avoid...
Curated OER
Adding Fractions
It's all here: uncommon denominators, reducing, improper fractions...mathematicians have their hands full as they complete 16 fraction addition problems. There are two examples showing them the steps required, and each problem guides...
Los Angeles County Office of Education
Assessment for the California Mathematics Standards Grade 3
Assess scholars' knowledge with a 22-page assessment that covers place value, patterns, probability, estimation, measurement, geometric figures; and their ability to add, subtract, multiply and divide proficiently.
Curated OER
Chapter 19 Review, Section 3: Oxidation-Reduction Reactions
If you need a homework assignment for your chemistry class, add this one to the possibilities. This assignment is composed of six questions including the identification of oxidizing and reducing agents, recognizing different redox...
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...
CK-12 Foundation
Percent of Change: The Pizza Conundrum
Nine questions—multiple choice and fill in the blank—challenge mathematicians to solve money word problems. Looking closely at prices, scholars use a formula to identify percent increases and decreases based on an original and new price....
CK-12 Foundation
Use Square Roots to Solve Quadratic Equations: Plus or Minus
Get two answers from a single equation. Pupils use the interactive to take the square root of nine and see the graphical representation of the two solutions. Individuals realize that solutions to quadratic equations that are solved by...
Mathematics Vision Project
Module 8: More Functions, More Features
A piece of this and a piece of that, add domain restrictions and create a piecewise function. Young scholars explore piecewise functions with and without context. Functions include both linear and quadratic parts. The module is the...
Curated OER
Math in English Skills I Exercise Book: Addition and Subtraction
Whether your pupils need extra help or they simply need to practice their basic computation skills, this packet will do the trick. It includes a written rationale, answer key, and over 10 pages of double-digit addition and subtraction...
Curated OER
What Time Is It? File Folder Game
Use a manila folder to make a clock game with these adorable time-related printables. The materials include an analog clock and a digital clock with all the related equipment, such as clock hands and numbers. Laminate or make the movable...
EngageNY
Ratios and Unit Rates
This turn-key unit on ratios and unit rates walks through a 30-lesson unit on teaching proportional reasoning, with each lesson broken into detailed teaching notes and time allotments for all parts. An unbelievable resource when taken...
Curated OER
Add Mixed Numbers With Like Denominators [H]
In this mixed number addition worksheet, students solve a total of 14 problems; all problems add mixed numbers with like denominators.
Curated OER
Add Mixed Numbers With Like Denominators (A)
In this math worksheet, students solve 16 problems in which mixed numbers with like denominators are added. Problems are written in horizontal format.
Curated OER
Adding and Subtracting Negative Numbers
For this positive and negative numbers worksheet, students solve 50 problems in which positive and negative integers are added and subtracted. There is detailed instruction provided. This page was intended to be an online activity, but...
Curated OER
Perfect Numbers?
Young scholars explore all types of numbers. In this factors, perfect numbers, abundant numbers, and defective numbers lesson plan students investigate the attributes of certain types of numbers and complete an activity sheet.
Curated OER
Add and Subtract Decimal Hundredths (D)
In this decimal numbers instructional activity, students solve 50 problems in which decimal numbers to the hundredths place are added or subtracted. Problems may need to be rewritten on another paper.
Curated OER
Negative Numbers: 4 Operations
For this negative numbers worksheet, students use number lines to complete activities, adding, subtracting, multiplying and dividing negative numbers.