Number and Operations

Number and operations in base

By Brittany Orr

Number & operations in base ​

What we will be doing ​

Adding and subtracting numbers using operations in base form. ​

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Some text here about the topic of discussion

https://sites.google.com/a/lsr7.net/wve-math/teachers/3rd-grade-resources/3rd-grade---unit-1---numbers-and-operations-in-base-ten

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Website for help ​

Multiple Choice

565 - 123 =

Help: When we subtract multi-digit numbers, we start with the digits in the ones place and move to the left. 

• 443

• 448

• 440

• 442

Multiple Choice

798 + 262 =

• 1054

• 1059

• 1060

• 1049

Multiple Choice

539 -  438 =

Help: When we subtract multi-digit numbers, we start with the digits in the ones place and move to the left. 

• 104

• 101

• 103

• 107

Draw

375 + 210 =

Show the work for each step and how you got your answer.