2nd Grade Envisions Topic 1 & 3 Vocab

2nd Grade Envisions Topic 1 & 3 Vocab

Addends

Numbers that are added.

Multiple Select

What are the addends in the equation: 3 + 8 = 11

Choose all that apply.

• 11

• 3

• 8

Doubles

Addition facts that have two addends that are the same.

Multiple Choice

Which of these equations is a doubles fact?

• 7 + 7 = 14

• 6 + 7 = 13

• 0 + 7 = 7

Near Doubles

Addition facts that have two addends that are close.

Multiple Choice

Which of these equations is a near doubles fact?

• 4 + 4 = 8

• 4 + 1 = 5

• 4 + 5 = 9

Equation

Uses an equal (=) sign to show that the value on the left is the same as the value on the right.

Multiple Choice

Which of these signs is the equal sign?

• +

• -

• =

Sum

The answer to an addition equation.

Difference

The answer to a subtraction equation.

Ones

The digit that shows how many ones are in a number.

Multiple Select

Which numbers have a 3 in the ones place? Choose all that apply.

• 33

• 45

• 13

• 38

Tens

The digit that shows how many groups of 10 are in a number.

Multiple Select

Which numbers have an 8 in the tens place? Choose all that apply.

• 80

• 18

• 78

• 89

Open Number Line

A tool you can use to help you add or subtract. It can begin at any number.

Multiple Choice

Which equation does this number line show?

• 50 + 30 = 80

• 50 + 40 = 90

• 50 + 50 = 100

• 50 + 90 = 140

Mental Math

Answering the question in your head, not on paper

Break Apart

Breaking a number into its place value parts (tens and ones)

Compensation