Teens as sums with 10

VIDEO 3:00 minutes

Monkeys for a party

VIDEO 2:58 minutes

Teen numbers 1

PRACTICE PROBLEMS

Teen numbers 2

PRACTICE PROBLEMS

Teen numbers 3

PRACTICE PROBLEMS

Groups of tens

PRACTICE PROBLEMS

Tens and ones

PRACTICE PROBLEMS

Subtract tens exercise

VIDEO 2:10 minutes

Subtract tens

PRACTICE PROBLEMS