## CCSS.Math.Content.2.NBT.B.8 - Mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900.

Authors: National Governors Association Center for Best Practices, Council of Chief State School OfficersTitle: CCSS.Math.Content.2.NBT.B.8 Mentally Add 10 Or 100 To A Given Number... Number and Operations in Base Ten - 2nd Grade Mathematics Common Core State Standards

Publisher: National Governors Association Center for Best Practices, Council of Chief State School Officers, Washington D.C.

Copyright Date: 2010

(Page last edited 10/08/2017)

- I4C: Online Practice - Mentally add 10 to a number between 100 and 900 - These online practice quizzes (interactives) support the following Common Core State Standard: CCSS.Math.Content.2.NBT.B.8. There are 100 quiz sets available on this topic. Answers are corrected after each question and a quiz results page is also shown which can be printed or emailed to a teacher, parent or mentor.
- I4C: Online Practice - Mentally add 10 to or subtract 10 from a number between 100 and 900 - These online practice quizzes (interactives) support the following Common Core State Standard: CCSS.Math.Content.2.NBT.B.8. There are 100 quiz sets available on this topic. Answers are corrected after each question and a quiz results page is also shown which can be printed or emailed to a teacher, parent or mentor.
- I4C: Online Practice - Mentally add 100 to a number between 100 and 900 - These online practice quizzes (interactives) support the following Common Core State Standard: CCSS.Math.Content.2.NBT.B.8. There are 100 quiz sets available on this topic. Answers are corrected after each question and a quiz results page is also shown which can be printed or emailed to a teacher, parent or mentor.
- I4C: Online Practice - Mentally add 100 to or subtract 100 from a number between 100 and 900 - These online practice quizzes (interactives) support the following Common Core State Standard: CCSS.Math.Content.2.NBT.B.8. There are 100 quiz sets available on this topic. Answers are corrected after each question and a quiz results page is also shown which can be printed or emailed to a teacher, parent or mentor.
- I4C: Online Practice - Mentally add or subtract 10 or 100 with a number between 100 and 900 - These online practice quizzes (interactives) support the following Common Core State Standard: CCSS.Math.Content.2.NBT.B.8. There are 100 quiz sets available on this topic. Answers are corrected after each question and a quiz results page is also shown which can be printed or emailed to a teacher, parent or mentor.
- I4C: Online Practice - Mentally subtract 10 from a number between 100 and 900 - These online practice quizzes (interactives) support the following Common Core State Standard: CCSS.Math.Content.2.NBT.B.8. There are 100 quiz sets available on this topic. Answers are corrected after each question and a quiz results page is also shown which can be printed or emailed to a teacher, parent or mentor.
- I4C: Online Practice - Mentally subtract 100 from a number between 100 and 900 - These online practice quizzes (interactives) support the following Common Core State Standard: CCSS.Math.Content.2.NBT.B.8. There are 100 quiz sets available on this topic. Answers are corrected after each question and a quiz results page is also shown which can be printed or emailed to a teacher, parent or mentor.
- I4C: Printable Worksheets - Mentally add 10 to a number between 100 and 900 - These worksheets support the following Common Core State Standard: CCSS.Math.Content.2.NBT.B.8. There are 100 worksheets available on this topic. A master answer key is available.
- I4C: Printable Worksheets - Mentally add 10 to or subtract 10 from a number between 100 and 900 - These worksheets support the following Common Core State Standard: CCSS.Math.Content.2.NBT.B.8. There are 100 worksheets available on this topic. A master answer key is available.
- I4C: Printable Worksheets - Mentally add 100 to a number between 100 and 900 - These worksheets support the following Common Core State Standard: CCSS.Math.Content.2.NBT.B.8. There are 100 worksheets available on this topic. A master answer key is available.
- I4C: Printable Worksheets - Mentally add 100 to or subtract 100 from a number between 100 and 900 - These worksheets support the following Common Core State Standard: CCSS.Math.Content.2.NBT.B.8. There are 100 worksheets available on this topic. A master answer key is available.
- I4C: Printable Worksheets - Mentally add or subtract 10 or 100 with a number between 100 and 900 - These worksheets support the following Common Core State Standard: CCSS.Math.Content.2.NBT.B.8. There are 100 worksheets available on this topic. A master answer key is available.
- I4C: Printable Worksheets - Mentally subtract 10 from a number between 100 and 900 - These worksheets support the following Common Core State Standard: CCSS.Math.Content.2.NBT.B.8. There are 100 worksheets available on this topic. A master answer key is available.
- I4C: Printable Worksheets - Mentally subtract 100 from a number between 100 and 900 - These worksheets support the following Common Core State Standard: CCSS.Math.Content.2.NBT.B.8. There are 100 worksheets available on this topic. A master answer key is available.
- 100 Hunt Addition - Online Game; look at the number given, add 10 and click on the answer.
- Add multiples of 10s - Online quiz; self checking
- Addition of 3 digit numbers - Online quiz; multiples of 100s
- Count by 100s - Worksheet; count by 100 up to 9900
- Count by 100s - Worksheet; starting at 300, skip-count by 100, and fill in the missing numbers.
- Count by 10s - Worksheet; count by 10s, starting with the number 6.
- Count on Convict - Count by 10s to figure an escape route.
- Find the Missing Number - Online quiz; Find a missing number when counting by 10
- Interactive Game; subtracting by 10 - Play Soccer; subtracting by 10s.
- Manipulative Game with Worksheet; counting by 100. - Turn over two numeral cards to make a 2-digit number. Record the number on the first space on the number line. Add 100 to your starting number and record the new total. Continue adding 100 until you have ten numbers in the sequence.
- Skip Counting by 10 - Online quiz; fill in the blank.
- Skip counting by 100s backwards - Online quiz; skip counting backwards by 10.
- Skip Counting by 10s Worksheet - Complete the following worksheet by skip counting the paths.
- Subtract multiples of 10s - Online quiz; self checking
- Subtraction of 3 digit numbers - Online quiz; multiples of 100s