Home
Order Products
Login
Online Courses
Search
Contact Us
Update Profile
Sign Up
Current Curriculum
kwizNET Subscribers, please login to turn off the Ads!
Email us to get an instant
20% discount
on highly effective K-12 Math & English
kwizNET Programs!
Online Quiz (
Worksheet
A
B
C
D
)
Questions Per Quiz =
2
4
6
8
10
Grade 3 - Mathematics
5.4 Estimating Sums and Differences
Method:
Round the numbers to the places mentioned.
Add or subtract after estimation as per the question.
Example
: 38 + 49 estimate is about _______.
Rounding both the numbers to the nearest tens place.
40 + 50
Answer: 90
Example
: 458 - 159
Rounding both the numbers to nearest hundreds
500 - 200
Answer: 300
Directions:
Find sums or differences after estimation. Also write at least ten examples of your own.
Q 1
: 491 + 309 estimate is about ________ . (hint: estimate the sum of three digit numbers by rounding to nearest hundreds place, that is 500+300 = ?).
700
200
800
Q 2
: 29 + 45 estimate is about ________ . (hint: estimate the sum of two digit numbers by rounding to nearest tens place, that is 30+50 = ?).
80
50
70
Question 3: This question is available to subscribers only!
Question 4: This question is available to subscribers only!
Subscription to kwizNET Learning System
offers the following benefits:
Unrestricted access to grade appropriate lessons, quizzes, & printable worksheets
Instant scoring of online quizzes
Progress tracking and award certificates to keep your student motivated
Unlimited practice with auto-generated 'WIZ MATH' quizzes
Child-friendly website with no advertisements
Choice of Math, English, Science, & Social Studies Curriculums
Excellent value for K-12 and ACT, SAT, & TOEFL Test Preparation
Get discount offers by sending an email to
discounts@kwiznet.com
Quiz Timer