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 = ?). 800 200 700
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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 = ?). 600 800 700
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Q 3: 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
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Q 4: 559 + 318 estimate is about ________ . (hint: estimate the sum of three digit numbers by rounding to nearest hundreds place, that is 600+300 = ?). 900 800 500
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