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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 4 - Mathematics
9.11 Estimation: Addition and Subtraction

  1. Approximate the given numbers.
  2. Add or subtract after approximation.
Example: 19,034 + 93
19,034 can be approximated to 19,000
93 can be approximated to 90
19,000 + 90
Answer: 19,090

Example: 4,230 - 167
4,230 can be approximated to 200,000,000
167 can be approximated to 200
200,000,000 - 200
Answer: 199,999,800


Directions: Find the approximate answer using estimation (round up or down before doing the calculation).
Q 1: 11,341,280 + 978 = ________
11,000,000
10,900,000
10,001,000
12,000,000

Question 2: This question is available to subscribers only!


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