Math Grade 2 Quiz Mentally add 10 or 100 to a given number 100900, and mentally subtract 10 or 100 from a given number 1009002.NBT.B.8
CCSS.MATH.CONTENT.2.NBT.B.8 is all about sharpening mental math skills, specifically when it comes to adding or subtracting multiples of 10 or 100 to numbers ranging from 100 to 900. This ability forms the foundational skill for various mathematical operations and applications later on. It enables students to rapidly make adjustments to numbers, benefiting everyday tasks and advanced mathematical operations. With practice, students can quickly determine the results without the need for written methods or calculators.
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 2.NBT.B.8 Mentally add 10 or 100 to a given number 100900, and mentally subtract 10 or 100 from a given number 100900 0%
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Question 1 of 10
1. Question
If you mentally subtract 10 from 320, what number do you get?
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Question 2 of 10
2. Question
Adding 100 to which number gives you 800?
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Question 3 of 10
3. Question
When you mentally subtract 100 from 750, what is the result?
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Question 4 of 10
4. Question
Mentally, what is 200 subtracted from 860?
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Question 5 of 10
5. Question
Which number is 100 less than 500?
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Question 6 of 10
6. Question
Mentally add 10 to 489. What do you get?
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Question 7 of 10
7. Question
If you subtract 10 from 205, which number is the result?
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Question 8 of 10
8. Question
What number will you get if you mentally add 100 to 570?
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Question 9 of 10
9. Question
Which of the following is 10 more than 688?
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Question 10 of 10
10. Question
What is the result when you mentally add 100 to 450?
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