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Grade 3 - Mathematics
5.4 Estimating Sums and Differences

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Q 1: 29 + 45 estimate is about ________ . (hint: estimate the sum of two digit numbers by rounding to nearest tens place, that is 30+50 = ?).
50
70
80

 Q 2: 928 - 237 estimate is about ________ . (hint: estimate the difference of three digit numbers by rounding to nearest hundreds place, that is 900-200 = ?).
800
700
600

Q 3: 559 + 318 estimate is about ________ . (hint: estimate the sum of three digit numbers by rounding to nearest hundreds place, that is 600+300 = ?).
800
900
500

 Question 4: This question is available to subscribers only!

Question 5: This question is available to subscribers only!

 Question 6: This question is available to subscribers only!


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