2nd Grade Math: Concepts and Sample Exercises
It's a good thing young children can soak up a lot of information in a fairly short period of time, because in 2nd grade math they have a lot to learn. They will build on their earlier math education by counting by ones and tens, adding and subtracting within 20, adding a 2digit number with a 1digit number and telling time.
Math Facts in 2nd Grade
Facts and Strategies Taught
By the end of the year, students in 2nd grade should be able to:
 Quickly add and subtract 1digit numbers
 Mentally add and subtract within 20
 Mentally add and subtract ten or 100 to any number from 100 to 900
 Add up to four 2digit numbers
 Recognize if a number is odd or even
 Recognize place values of units, tens and hundreds
 Count to 1000
 Skip count by fives and tens
 Determine if a number is greater than or less than another number
 Use the symbols > and <
 Estimate and measure objects using inches and feet, centimeters and meters
 Tell time to the nearest five minutes, using both analog and digital clocks
 Use a.m. and p.m.
 Appropriately use money symbols  $ and ¢
 Solve word problems that use all kinds of coins and bills up to and including $1
Sample Exercises
The following are math questions students might be asked during a 2nd grade test. Some of the counting and measuring answers are purposely not given. For the timerelated questions, you may want to draw a clock to help your child visualize the problem.
Oral Questions
 Add 7 to 9. (Answer: 16)
 Add 12 plus 6. (Answer: 18)
 Subtract 8 from 14. (Answer: 6)
 What is 17 minus 9? (Answer: 8)
 Add 10 to 751. (Answer: 761)
 What is 100 added to 829. (Answer: 929)
 Subtract 10 from 636. (Answer: 626)
 What is 648 minus 100? (Answer: 548)
 Is 421 an odd or an even number? (Answer: Odd) How about 54? (Answer: Even)
 Count from 750 to 825.
 Count by 5s from 15 to 55.
 Count by 10s from 0 to 100.
 Count by 100s from 0 to 1000.
 Read these numbers out loud: 999; 452
Written Questions
 In the number 837, which number is in the tens column? What does that mean? (Answer: 3. It means there are three tens  or 30  in the number.)
 In the number 654, which number is in the hundreds column? (Answer: 6)
 Add the following: 24 + 33 + 58 + 79 (Answer: 194)
 Is 78 greater than(>) or less than (<) 56? (Answer: >)
 Estimate the length of this line in centimeters:  Measure it and see how close you were.
 It is time for morning recess. The clock looks like this. (Digital or analog clock showing 10:02) Tell the time to the nearest five minutes. (Answer: 10:00 a.m.)
 If you had 3 pennies, 3 nickels, 3 quarters and 3 dimes, how much money would you have? (Answer: $1.23)
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