mathematics

Front

What multiplication sentence does the array of 5 rows and 5 columns represent?

Back

5 x 5 = 25

Tags

CCSS.3.OA.A.1

Front

If Lindsey, Lyle, Matt, and Rishi each brought 6 guests to the school play, how do you calculate the total number of guests?

Back

Total guests = 4 (people) x 6 (guests each) = 24 guests.

Tags

CCSS.3.OA.A.3

Front

What is the commutative property of multiplication?

Back

The commutative property states that changing the order of the factors does not change the product. For example, 5 x 2 = 2 x 5.

Tags

CCSS.3.OA.B.5

Front

How do you complete a fact family for multiplication and division?

Back

A fact family consists of related addition and subtraction or multiplication and division equations. For example, from 8 x 4 = 32, you can derive 4 x 8 = 32, 32 ÷ 8 = 4, and 32 ÷ 4 = 8.

Tags

CCSS.4.NBT.B.6

Front

If each chair costs 5 dollars and Tom bought 4 chairs, how do you calculate the total cost?

Back

Total cost = 4 (chairs) x 5 (dollars each) = $20.

Tags

CCSS.3.OA.A.3

Front

What is the definition of multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 4 x 3 means adding 4 three times (4 + 4 + 4).

Tags

CCSS.3.OA.A.1

Front

What is an array in mathematics?

Back

An array is a systematic arrangement of objects, usually in rows and columns, used to represent multiplication and division.

Tags

CCSS.3.OA.A.1

Front

How can you use the commutative property to solve multiplication problems?

Back

You can rearrange the factors in a multiplication problem to make it easier to solve. For example, if you know 3 x 4 = 12, you can also say 4 x 3 = 12.

Tags

CCSS.3.OA.B.5

Front

What is the relationship between multiplication and division?

Back

Multiplication and division are inverse operations. If you know a multiplication fact, you can use it to find the corresponding division fact.

Tags

CCSS.4.NBT.B.6

Front

How do you find the total number of items when given groups of items?

Back

Multiply the number of groups by the number of items in each group. For example, if there are 5 groups of 3 items, the total is 5 x 3 = 15.

Tags

CCSS.2.OA.C.3