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

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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.4C

CCSS.4.NF.B.4B

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