EngageNY
Even and Odd Numbers
Even or not, here I come. Groups investigate the parity of products and sums of whole numbers in the 17th lesson in a series of 21. Using dots to represent numbers, they develop a pattern for the products of two even numbers; two odd...
Teacher's Guide
Two-Digit Addition without Regrouping
Youngsters practice adding two, two-digit numbers without regrouping. There are 15 equations to solve.
Under the Dome
Consecutive Number Sums
Determine equivalent methods to find sums of consecutive numbers. Learners watch a video of a computer program that finds the sum of five consecutive numbers given a starting number. Pupils hypothesize how to determine the sum without...
Quia
Quia: Doubles Facts or Odd and Even
It's double or nothing when you play these fun, interactive games. Review doubles facts in minutes with the Matching or Concentration games. Then, practice identifying odd and even numbers with the interactive flashcards. A quick and...
Math Is Fun
Math Is Fun: Even and Odd Numbers
What is an even number? What is an odd number? Learn the definitions of each, and see rules for adding, subtracting, and multiplying even and odd numbers.