Christmas math

Front

What is rounding?

Back

Rounding is the process of adjusting a number to make it simpler and easier to work with, usually to the nearest ten, hundred, etc.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Round 45 to the nearest 10.

Back

50

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is a dozen?

Back

A dozen is a group of twelve items.

Tags

CCSS.3.OA.D.9

Front

If the Brown family made five dozen sugar cookies, how many cookies did they make in all?

Back

60 cookies (5 dozen x 12 cookies per dozen = 60 cookies).

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Front

What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times.

Tags

CCSS.3.OA.A.1

Front

Serenity made 6 necklaces with 8 charms each. How many charms did she have in total?

Back

48 charms (6 necklaces x 8 charms each = 48 charms).

Tags

CCSS.3.OA.A.3

Front

If Serenity gave away 3 necklaces, how many does she have left?

Back

3 necklaces (6 - 3 = 3 necklaces left).

Tags

CCSS.2.OA.A.1

Front

What is an expression in math?

Back

An expression is a combination of numbers, symbols, and operators (like +, -, x, ÷) that represents a value.

Tags

CCSS.6.EE.A.2B

Front

What expression helps solve how many Batman books Marcus has left after losing some?

Back

(12 x 3) - 5.

Tags

CCSS.3.OA.D.8

Front

What is division?

Back

Division is a mathematical operation where a number is split into equal parts.

Tags

CCSS.3.OA.A.2