Calculating Squares of Whole Numbers up to 100

Try these questions

5 questions from this lesson’s quiz. Start the lesson to answer them and see the right answers.

1. 1. What is the value of 90^2?

   • A. 180
   • B. 810
   • C. 8,100
   • D. 81,000

2. 2. Use the shortcut for numbers ending in 5 to find 75^2.

   Type your answer in the lesson.

3. 3. Calculate 64^2 using column multiplication.

   Type your answer in the lesson.

4. 4. A farmer in Nakuru has a square shamba with each side measuring 85 metres. What is the area of the shamba?

   Type your answer (in m^2) in the lesson.

5. 5. A square plot has sides of 40 metres. Which pair gives its area and perimeter correctly?

   • A. Area 1,600 m^2; perimeter 160 m
   • B. Area 160 m^2; perimeter 1,600 m
   • C. Area 1,600 m^2; perimeter 80 m
   • D. Area 800 m^2; perimeter 160 m

More in Whole Numbers

• ▸Rounding Off Numbers to the Nearest Thousand
• ▸Real Life Applications of Rounding Off up to 100,000
• ▸Concept of Squares of Whole Numbers
• ▸Calculating Squares of Numbers up to 50
• ▸Concept of Square Roots of Numbers
• ▸Determining Square Roots Using Factor Trees
• ▸Square Roots of Perfect Squares up to 1,000
• ▸Square Roots of Perfect Squares up to 10,000

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