Curated OER
Secret Code Riddles: Addition & Subtraction
In 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...
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
Critical Thinking Problems
Young mathematicians practice their reasoning as well as adding and subtracting skills with this worksheet that includes five simple word problems about birthdays. Learners are give pictures of birthday cakes and based on the number of...
Curated OER
Roman Numerals and Their History
Students identify Roman numerals and the history associated with them. In this historical number instructional activity, students investigate charts and photographs to discover the history of Roman numerals. Students bring a Roman...