1.3

Know that the larger numbers describe sets with more objects in them than the smaller number have.

Harcourt Brace: Math Carnival Countdown

Macmillan McGraw-Hill: Find the Missing Number Part 1

Macmillan McGraw-Hill: Find the Missing Number Part 2

Macmillan McGraw-Hill: Unscramble the Eggs 0-5

Macmillan McGraw-Hill: Unscramble the Eggs 6-10

Macmillan McGraw-Hill: Unscramble the Eggs 11-20