What is Thomas Jefferson signing? Focus on American history with this cross-curricular math puzzle. Learners utilize addition and subtraction skills to solve the mystery of the Fourth of July. All numbers are 3-digit, and there are no...

Students solve addition and subtraction problems and decipher and write messages using a code. They read and discuss an informational fact sheet about the Navajo code talkers from World War II, and decode and re-code messages using math...

In this addition and subtraction worksheet, students solve for problems to complete the riddle about George Washington.  Students solve 20 two digit problems of addition and subtraction with some regrouping necessary.

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...

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. 

Young scholars perform basic operations in modular (clock) arithmetic. Students encode and decode messages using shift and affine ciphers. Young scholars apply their multiplication, division, addition, and subtraction skills.

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...

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...

Students 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.  Students bring a Roman...

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...

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.

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...

This video features Harry and his cousin Harley. Harley is desperate to use Harry's bike, but first he must decipher the combination to the bike lock by solving a word problem. In the accompanying classroom activity, students complete a...

This one page website from Scholastic offers two math facts games and a secret code idea all to help you remember your math facts.