enVision Math
Common Core 2020
Topic 2
Fluently Add and Subtract
Multi-Digit Whole Numbers
Lesson 2-3
Add
Whole Numbers
Learning Target:
I can add numbers with and without regrouping using the standard algorithm.
Connect to real life: When might you need to add a large number that is more than 1,000?
When might you need to add three or more numbers?
Russell and his friends were collecting money to pay for a new playground for the children in the community. Russell has collected $436, Tom has collected $263, and John has collected $129.
How much money did they collect?
Answer on then next slide.
436 + 263 + 129 = $828
How did you solve this problem?
Use the standard algorithm to add. 828 + 821
Hint: Line up the numbers based on place value and put the number with the greatest number of DIGITS on top.
828
+ 821
Start adding with the smallest place value (ones).
Answer on then next slide.
8 2 8
+ 8 2 1
1,64 9
Answer on then next slide.
Use the standard algorithm to add.
598 +273
598
+ 273
87 1_
1
1
Answer on then next slide.
612 people attended a concert in the park on Monday. On Tuesday, 132 people attended the concert. How many total people attended the concert on
Monday and Tuesday?
612 + 132 =
744 people
Answer on then next slide.
Last Question: Lindsey read 199 pages of her book on Saturday and 281 pages of her book on Sunday. How many total pages did she read on these two days?
199 + 281 =
480 pages
Lesson 2-4
Add Greater
Numbers
Objective: Today, we will add greater numbers with and without regrouping using the standard algorithm.
Use the standard algorithm to add. 821 + 4,821
Hint: Line up the numbers based on place value and put the number with the greatest number of DIGITS on top.
4,821
+ 821
Start adding with the smallest place value (ones).
Answer on then next slide.
4,8 2 1
+ 8 2 1
5,6 4 2
1
Answer on then next slide.
Use the standard algorithm to add.
723 + 4,124 + 821
4,1 2 4
7 2 3
+ 8 2 1
5,6 6 8
1
Notice we placed the 4,124 on the top to line up the rest of the numbers a little more easily. You DON’T have to do this, but many students find this helpful!
Answer on then next slide.
Use the standard algorithm to add.
4,398 + 23,173
2 3, 1 7 3
+ 4, 3 9 8
2 7 ,5 7 1
1
1
Answer on then next slide.
Use the standard algorithm to add.
15,723 + 8,303
1 5,723
+ 8,303
24,026
1
1
Answer on then next slide.
Use the standard algorithm to add.
64,653 + 27,401
64,653
+ 27 ,401
92,054
1
1
Answer on then next slide.
32,134 people attended an amusement park in Jacksonville on Monday. On Tuesday, 26,123 people attended the park. How many total people attended the amusement park on Monday and Tuesday?
32,134
+ 26,123
58,257
people
Summary:�Align all numbers!��Add starting in the ONES place��regroup when needed