Curated OER
Secret Code Riddles: Addition & Subtraction
For this riddle worksheet, students use mathematics to break a secret code. They solve addition and subtraction problems to discover the answer to given riddles. There are 9 riddles, with an average of seven to nine problems to solve...
For the Teachers
$1 Math
Captivate your class by having them find the value of their names, different zoo animals, musical instruments, etc.,with a mental math lesson. Using the coding formula listed, children learn to fluently estimate and calculate simple sums.
Curated OER
ZIP Code Math
Students add or subtract to solve ZIP Code Math word problems. A ZIP Code Math work sheet is included. This activity combines math with geography quite nicely.
Little 10 Robot
Operation Math Code Squad
Your mission, if you decide to accept it, is math skills practice. In this app, Mission Impossible meets basic number operation skills, and your students are the secret agents.
Curated OER
Fourth of July Add or Subtract Worksheets
There are actually two Independence-Day-themed worksheets in this resource. Patriots solve three-digit addition and subtraction problems, then find the letter from the key that corresponds to each of their answers. As they place each...
Curated OER
Clock Arithmetic and Cryptography
Students perform basic operations in modular (clock) arithmetic. Students encode and decode messages using shift and affine ciphers. Students apply their multiplication, division, addition, and subtraction skills.
Curated OER
Working with Cuisenaire Rods In Mathematics
Fourth graders learn the numerical value of each underlined letter of the standard Rod Code and develop systematic usage for building new units.
Curated OER
Solving Single-Step Word Problems
Math wizards learn the five-step plan to solve math word problems. They investigate the five-step process for solving word problems, and examine the use of code words for each of the operations and solve a problem using the strategies.
Curated OER
You Know the Answer: Math Riddle
Although the riddle is an outdated political reference, this math challenge is a good practice in operations and domain-specific vocabulary. Learners complete 18 problems, using multiplication, division, subtraction, and addition. Some...
Curated OER
What is Coal?
Students receive instruction to answer the question "What is coal?". They then participate in several puzzles and problems to explore the subject of coal. They solve addition and subtraction problems and match letters with the letter...
Savvas Learning
Saxon Math 5/4
You'll never have to search for another worksheet again after downloading this extensive collection of Saxon math materials. With over 600 pages of example problems and skills practice exercises, this is a must-have resource for any...
Raytheon
Strategies for Solving Math Word Problems
In this strategies for solving math word problems activity, students read two pages of examples and explanations, then solve 42 addition, subtraction, multiplication and division problems, answer sheet included.
Curated OER
You Know the Answer
In this problem solving instructional activity, 4th graders are given an answer to a question and must solve the mathematical problems to discover the secret question. Students solve for 18 problems using addition, subtraction,...
Curated OER
Roman Numerals and Their History
Learners identify Roman numerals and the history associated with them. In this historical number lesson plan, students investigate charts and photographs to discover the history of Roman numerals. Learners bring a Roman numeral into...