K-2 Mathematics Resources for Parents/Guardians
Videos for "Ten or One Hundred More or Less"
Students will need to be able to find ten more or ten less than any given three digit number. Students must also be able to find 100 more or 100 less than any given three digit number. It is important that your student is able to do this without counting up or down by ten or 100 individual ones. Students must also be able to explain their reasoning. For example, students should be able to say that 145 is ten more than 135 without counting, and 125 is ten less than 135 without counting.
Standard code and description: 2.NR.2.2; Find 10 more or 10 less than a given three digit number and find 100 more or 100 less than a given three digit number.
Ten or One Hundred More or Less Tasks
The above link is a task involving base ten blocks.
Some questions to ask your child are as follows:
- What is 100 more than 349?
- What is 100 less than 349?
- What is the difference between 349 and the new numbers?
The above link is a task involving base ten blocks.
Some questions to ask your child are as follows:
- Model 157 with base ten blocks.
- What is 100 more than 157?
- How do you know?
- What is 100 less than 157?
- How do you know?
The above link is a task involving base ten blocks.
Some questions to ask your child are as follows:
- What is 100 more than the number modeled?
- What is 100 less than the number modeled?
The above link is a task involving base ten blocks.
Some questions to ask your child are as follows:
- Using base ten blocks, model the number 230.
- What number is 10 more than 230?
- How do you know?
- What number is 10 less than 230?
- How do you know?
The above link is a task involving base ten blocks.
Some questions to ask your child are as follows:
- What number is 10 less than 450?
- What number is 10 more than 450?
The above link is a task involving base ten blocks.
Some questions to ask your child are as follows:
- Using base ten blocks, what is ten more than the number 823?
- How do you know?
- Using base ten blocks, what is ten less than the number 823?
- How do you know?
The above link is a task involving base ten blocks.
Some questions to ask your child are as follows:
- What number is modeled below?
- What is 100 more than the number shown?
- What is the number modeled below?
- What is 100 less than the number shown?
The above link is a task involving base ten blocks.
Some questions to ask your child are as follows:
- Using base ten blocks, model 305.
- Using base ten blocks, what is 100 less than 305?
- How do you know?
The above link is a task involving an open number line.
Some questions to ask your child are as follows:
- What is ten more than the number shown?
- How do you know?
- What is ten less than the number shown?
- How do you know?
The above link is a task involving an open number line.
Some questions to ask your child are as follows:
- Using the number line, what is 100 more than the number given?
- What is 100 less?
- How do you know?
The above link is a task involving an open number line.
Some questions to ask your child are as follows:
- The number we are working with is 873.
- What is ten more than 873?
- What is ten less than 873?
- What is 100 more than 873?
- What is 100 less than 873?
The above link is a task involving an open number line.
Some questions to ask your child are as follows:
- Mark the number 618 on the number line.
- What is 10 more?
- What is 100 more?
- What is 10 less?
- What is 100 less?
The above link is a task involving an open number line.
Some questions to ask your child are as follows:
- What is ten more than the number shown?
- How do you know?
- What is ten less than the number shown?
- How do you know?
- What is 100 more than the number shown?
- How do you know?
- What is 100 less than the number shown?
- How do you know?
The above link is a task involving an open number line.
Some questions to ask your child are as follows:
- What is 100 more than the number shown?
- How do you know?
- What is 100 less than the number shown?
- How do you know?
- What is 10 more than the number shown?
- How do you know?
- What is 10 less than the number shown?
- How do you know?
The above link is a task involving an open number line.
Some questions to ask your child are as follows:
- What number is 100 more than the number modeled on the number line?
- How do you know?