Mental Math And Estimation-Grade 3: Question Preview (ID: 4596)


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387+96= _________- 4
a) 475 b) 479 c) 483 d) 487
455 - 99= 456 - _______
a) 100 b) 101 c) 199 d) 200
Tony sells 7,359 gallons of gasoline. What is this volume rounded to the nearest hundred?
a) 7000 gallons b) 7300 gallons c) 7360 gallons d) 7400 gallons
Which is a reasonable estimate of the difference between 8,446 and 2,312.
a) 10,000 b) 8,000 c) 6,000 d) 5,000
Add mentally: 62+27
a) 87 b) 89 c) 100 d) 80
subtract mentally: 53-11
a) 40 b) 60 c) 42 d) 41
Use Front End estimation: 632+421
a) 1000 b) 800 c) 1035 d) 1100
Estimate to solve: Paul has 72 cards. He gives away 59 cards. About how many cards does he have left?
a) 30 b) 20 c) 10 d) 0
Use estimation to solve: Rick has $99. He saves another $46. About how much money does he have now?
a) $150 b) $140 c) $50 d) $146
The _____________ in a number is the digit with the greatest place value.
a) hundreds b) leading digit c) front end estimation d) five
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