NWEA Winter Math Review

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 3 x 4 means adding 3 four times (3 + 3 + 3 + 3 = 12).

Front

How do you find the total number of items in multiple boxes?

Back

To find the total number of items in multiple boxes, multiply the number of boxes by the number of items in each box. For example, if there are 27 boxes with 45 cookies each, the total is 27 x 45.

Front

What is the formula for finding the total number of cookies baked in batches?

Back

The total number of cookies baked can be found by multiplying the number of batches by the number of cookies per batch. For example, if there are 6 batches of 60 cookies, the total is 6 x 60.

Front

What does 'twice as many' mean?

Back

'Twice as many' means two times the amount. If there are 26 women, then there are 2 x 26 = 52 men.

Front

How do you calculate the difference between two numbers?

Back

To calculate the difference between two numbers, subtract the smaller number from the larger number. For example, if 875 gift cards were sold in 2014 and 259 in 2013, the difference is 875 - 259.

Front

What is an equivalent expression?

Back

An equivalent expression is a different way of writing the same mathematical value. For example, (200 + 23) x 4 is equivalent to 223 x 4.

Front

How do you solve a word problem involving addition and multiplication?

Back

First, identify the quantities involved, then determine whether to add or multiply based on the context. Write an equation to represent the problem and solve it.

Front

What is the total number of participants in a contest if there are 26 women and twice as many men?

Back

If there are 26 women and twice as many men, then there are 52 men. The total number of participants is 26 + 52 = 78.

Front

How do you find the total number of cookies baked in different batches?

Back

Add the total cookies from each batch. For example, if 6 batches of 60 cookies and 5 batches of 90 cookies are baked, the total is (6 x 60) + (5 x 90).

Front

What is the process for solving a multiplication problem?

Back

To solve a multiplication problem, identify the numbers to be multiplied, write the multiplication equation, and calculate the product.