Mental Math Strategies Assessment

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another. For example, in 12 - 10, we take 10 away from 12, which equals 2.

Front

What does it mean to add more?

Back

To add more means to increase a number by another number. For example, if you have 12 donkeys and Zack buys 10 more, he has 12 + 10 = 22 donkeys.

Tags

CCSS.2.OA.A.1

Front

What is the result of 100 more than a number?

Back

To find 100 more than a number, you simply add 100 to that number. For example, 100 more than 420 is 420 + 100 = 520.

Tags

CCSS.2.NBT.B.8

Front

How do you find the total number of items?

Back

To find the total number of items, you add the number of items you have to the number of items someone else has. For example, if Joseph has 5 cars and Mr. Arthur has 20 cars, the total is 5 + 20 = 25 cars.

Tags

CCSS.2.OA.C.4

Front

What is the meaning of 'less than' in math?

Back

'Less than' means to subtract a number from another number. For example, 10 less than 145 means 145 - 10 = 135.

Tags

CCSS.1.OA.A.1

Front

What is the difference in subtraction?

Back

The difference is the result of subtracting one number from another. For example, the difference between 12 and 10 is 12 - 10 = 2.

Tags

CCSS.1.OA.A.1

Front

What is the sum in addition?

Back

The sum is the result of adding two or more numbers together. For example, the sum of 12 and 10 is 12 + 10 = 22.

Tags

CCSS.1.OA.A.1

Front

How do you solve a word problem in math?

Back

To solve a word problem, read the problem carefully, identify the numbers involved, and determine what operation (addition, subtraction, etc.) to use.

Tags

CCSS.2.OA.A.1

Front

What is a number line?

Back

A number line is a straight line with numbers placed at equal intervals. It helps visualize addition and subtraction.

Tags

CCSS.2.MD.B.6

Front

What is the process of estimation?

Back

Estimation is finding a number that is close to the exact answer. For example, estimating 12 - 10 can be thought of as about 2.