Q 1: 419  187 estimate is about ________ . (hint: estimate the difference of three digit numbers by rounding to nearest hundreds place, that is 400200 = ?). 400 200 300

Q 2: 928  237 estimate is about ________ . (hint: estimate the difference of three digit numbers by rounding to nearest hundreds place, that is 900200 = ?). 700 800 600

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 = ?). 80 50 70

Q 4: 491 + 309 estimate is about ________ . (hint: estimate the sum of three digit numbers by rounding to nearest hundreds place, that is 500+300 = ?). 800 700 200

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