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by BlastRoom
Use the benchmarks 0, 1/2, and 1 to estimate fraction sums and differences and to judge whether an answer is reasonable.
#benchmark_fractions#us_grade_5_math
40 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.
The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
Is 1/8 closest to 0, to 1/2, or to 1?
Maya rounds 5/8 to the nearest benchmark fraction. Which benchmark does she get?
A water bottle is 7/8 full. Which benchmark fraction best describes how full it is?
Ben needs to estimate with the fraction 1/12. Which benchmark fraction should he use in place of it?
Which benchmark fraction is nearest to 5/12?
A jar holds 11/12 of a liter of juice. Using benchmarks, about how much juice is that?
Only 1/10 of a poster has been painted. Which benchmark fraction best estimates the painted part?
When estimating, the fraction 3/5 should be replaced by which benchmark fraction?
A tank is 9/10 full. Which benchmark fraction is closest to 9/10?
Which benchmark fraction would you use to estimate with 1/16?
Sam is estimating with 2/3. Which benchmark is 2/3 nearest?
Students ate 5/6 of a pizza. Which benchmark fraction best describes the part they ate?
Is 7/16 nearer to 0, to 1/2, or to 1?
A ribbon is 4/5 of a meter long. Which benchmark length is closest to its length?
Without adding, decide whether 3/8 + 5/12 is greater than 1 or less than 1.
Is 5/8 + 9/16 greater than 1 or less than 1?
Lena walks 4/5 kilometer, then walks 3/8 kilometer more. Is her total distance greater than 1 kilometer or less than 1 kilometer?
Is 1/6 + 5/8 greater than 1 or less than 1?
Is 9/10 + 1/5 greater than 1 or less than 1?
Rosa adds 11/12 and 1/5. How does her sum compare with 1?
The fractions 7/16 and 5/12 are each a little less than 1/2. What does that tell you about their sum?
When both fractions being added are less than 1/2, the sum must be less than 1.
One jug holds 1/8 liter of milk and another holds 3/5 liter. Is the total greater than 1 liter or less than 1 liter?
Compare 2/3 + 3/5 with 1 without finding the exact sum.
Which sum is greater than 1: 1/6 + 1/3 or 5/6 + 1/3?
Is 1/12 + 3/8 greater than 1/2 or less than 1/2?
Kim colors 1/6 of a page, then colors 1/5 of the page more. Is the colored part greater or less than half the page?
Compare 5/12 + 1/3 with 1/2.
Is 1/8 + 1/10 greater than 1/2 or less than 1/2?
Without adding, decide how 2/5 + 3/10 compares with 1/2.
Which sum is less than 1/2: 1/16 + 1/10 or 3/8 + 1/4?
Leo says that 2/3 + 3/4 equals 5/7. Use benchmarks to judge his answer.
About how much is 7/8 + 1/12?
About how much is 5/6 + 7/8?
About how much is 9/10 - 1/16?
About how much is 5/8 - 1/2?
About how much is 15/16 - 3/8?
Ana says that 1/12 + 1/10 is about 1. Is her estimate reasonable?
A recipe uses 5/6 cup of flour and 7/12 cup of sugar. About how many cups is that in all?
Ben subtracts 1/3 from 7/8 and gets 1 5/24. Why is his answer unreasonable?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.
Pick a tile, answer, hit bonuses and steals.
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40 questions
