Essential Skills:
Unit Vocabulary:
addend, addition, altogether, amount, apply, combination, compose, counting, difference, digit, double, equal, equation, expression, fact family, greater, less, more, number sentence, operation, properties, related fact, relationship, represent, same, strategy, sum, take away, ten frame, together, total, turnaround fact, unknown, value, whole number
- · Add numbers within sums of 20.
- · Add up to 3 numbers to find a sum.
- · Subtract numbers within 20.
- · Explain and apply properties of addition and subtraction.
- · Solve word problems involving addition and subtraction.
Unit Vocabulary:
addend, addition, altogether, amount, apply, combination, compose, counting, difference, digit, double, equal, equation, expression, fact family, greater, less, more, number sentence, operation, properties, related fact, relationship, represent, same, strategy, sum, take away, ten frame, together, total, turnaround fact, unknown, value, whole number