Subtraction of Whole Numbers

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 result of 50 000 000 - 23 456 789?

   • A. 26 543 211
   • B. 27 543 211
   • C. 26 654 321
   • D. 37 654 321

2. 2. To work out 50 000 000 - 23 456 789, we regroup the minuend across its zeros. What happens to the digits?

   • A. The 5 becomes 4, the six middle zeros become 9s, and the units zero becomes 10
   • B. The 5 stays 5, the six middle zeros become 9s, and the units zero becomes 10
   • C. The 5 becomes 4, and every zero becomes 10
   • D. The 5 becomes 4, and all the zeros stay as 0

3. 3. Amina works out 742 - 385 and gets 357. Which addition check proves her answer is correct?

   • A. 357 + 385 = 742
   • B. 357 + 742 = 1 099
   • C. 742 + 385 = 1 127
   • D. 385 - 357 = 28

4. 4. In the subtraction 9 000 - 2 500 = 6 500, what is the number 9 000 (the one we subtract from) called?

   Type your answer in the lesson.

5. 5. A tea cooperative in Kericho earned KES 82 500 000 from tea exports. Its expenses were KES 57 842 650. How much surplus remains, in KES?

   Type your answer (in KES) in the lesson.

More in Whole Numbers

• ▸Rounding off up to the Nearest Hundred Million
• ▸Even and Odd Numbers
• ▸Prime Numbers
• ▸Addition of Whole Numbers
• ▸Divisibility Tests for 3, 6, 9 and 11
• ▸Composite Numbers as a Product of Prime Factors
• ▸Greatest Common Divisor by Factor Method
• ▸Least Common Multiple by the Factor Method

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