Gr3_Estimate the sum
Presentation
•
Mathematics
•
3rd - 4th Grade
•
Hard
Rajalakshmi Mecheri
Used 20+ times
FREE Resource
4 Slides • 8 Questions
1
Gr3_Estimate the sum_ALL
2
Multiple Choice
Ms. Almy is 28 years old. How old is Ms. Almy rounded to the nearest 10? Is it right to round the age?
10
20
30, No we shouldnt round the age.
999,999,999,999,999
3
Multiple Choice
What is 346 rounded to the nearest hundred?
340
300
350
400
4
Multiple Choice
Which of these numbers rounds to 400 when rounded to the nearest 100?
342
476
362
451
5
Multiple Choice
can round 45 to the thnearest ten?
yes we can
No we shouldnt.
6
LEARNING OBJECTIVE
Apply estimation to solve problems based on addition
7
GP
ESTIMATE 23 + 42
8
Poll
Quick check :
Jamil and Izaan are asked to estimate the sum of 345 + 670 by rounding to the nearest ten.
Jamil adds the numbers and then rounds the answer.
Izaan rounds the addends and then adds the rounded number.
Whose method of estimation is right?
Jamil
Izaan
9
TASKS
Estimate the sum rounding to the nearest 10
234 + 334
Use the numbers given below to make two calculations with an estimated sum of 250 by rounding them to nearest ten.
169, 206,
42, 79.
Match the best possible estimation.
345 + 273
340 + 280
350 + 280
350 + 270
10
Open Ended
Task 4: Open ended Question
The estimated answer to a calculation is 400,
Given any possible three pairs of numbers when rounded to the nearest ten and added will give the answer as 400.
11
Fill in the Blanks
Post assessment:
Estimate 983 +345
Type answer...
12
Poll
How well did you understand the lesson.
Crystal clear
I need to practice more
I need more help
i am confused.
Gr3_Estimate the sum_ALL
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