Multiplication Problem Solving

Front

What is multiplication?

Back

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

Tags

CCSS.3.OA.A.1

Front

What does the distributive property of multiplication state?

Back

The distributive property states that a × (b + c) = (a × b) + (a × c). This means you can distribute the multiplication over addition.

Tags

CCSS.3.OA.B.5

Front

How do you solve a multiplication problem with parentheses?

Back

First, solve the expression inside the parentheses, then multiply the result by the number outside. For example, in 3 × (15 + 8), first calculate (15 + 8) = 23, then multiply 3 × 23 = 69.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Front

What is the product of 6 and 7?

Back

The product of 6 and 7 is 42.

Tags

CCSS.3.OA.C.7

Front

If you have 5 groups of 4 apples, how many apples do you have in total?

Back

You have 20 apples in total because 5 × 4 = 20.

Tags

CCSS.2.OA.C.3

Front

What is an equivalent expression for 2 × (3 + 5)?

Back

An equivalent expression is (2 × 3) + (2 × 5), which equals 6 + 10 = 16.

Tags

CCSS.7.NS.A.1D

Front

How do you find the total cost if one item costs $5 and you buy 3 items?

Back

Multiply the cost of one item by the number of items: $5 × 3 = $15.

Tags

CCSS.3.OA.A.3

Front

What is the total number of fish in 9 tanks with 423 fish each?

Back

The total number of fish is 3,807 because 9 × 423 = 3,807.

Front

If a hotel has 128 rooms on each of its 4 floors, how many rooms are there in total?

Back

There are 512 rooms in total because 128 × 4 = 512.

Tags

CCSS.4.NBT.B.5

Front

What is the difference between the total number of rooms and the number of cleaned rooms if 334 rooms are cleaned?

Back

The difference is 178 rooms that still need to be cleaned, calculated as 512 - 334 = 178.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2