Grade 8 Mental Math Mastery

A worksheet designed to enhance mental math skills for 8th-grade students, focusing on rapid calculations and estimation.

Grade 8 Math Number SenseMental Math

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Includes

Fill in the BlanksMultiple ChoiceTrue / FalseShort AnswerCustom

Standards

CCSS.MATH.CONTENT.8.EE.B.5CCSS.MATH.CONTENT.8.NS.A.2

Topics

mental mathgrade 8number senseestimationarithmetic

7 sections · Free to use · Printable

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Grade 8 Mental Math Mastery

Name:

Date:

Score:

Read each question carefully and solve it using mental math strategies. Try to avoid using a calculator or writing down intermediate steps. Show your final answer in the space provided.

1. What is 15% of 80?

2. Calculate 25 × 32 mentally.

3. What is 720 ÷ 9?

4. Find the sum of 1.75 and 2.25.

1. Which of the following is the best estimate for 49.8 × 3.1?

120

150

180

200

2. Approximately, what is the square root of 65?

1. 3/4 + 1/2 = 1.25

True

False

2. (8 + 4) × 2 = 8 + (4 × 2)

True

False

1. If a shirt costs $25 and is on sale for 20% off, what is the new price?

2. A recipe calls for 1.5 cups of flour. If you want to make 3 times the recipe, how much flour do you need?

1. Plot the result of 5 + (-8) on the number line below.

2. What is the distance between -3 and 7 on a number line?