Round to the nearest 10 and 100 (3.NBT.1)
Extreme Ironing
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Answers:
1. 60 feet
2. 20 feet
3. The first team’s height at 58 feet
4. 400 feet.
Estimate sums and differences within 1,000 (3.NBT.1)
When Humans Take Flight
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Answers:
1. About 250 feet farther
2. About 820 feet
3. About 70 seconds longer
4. About 700 feet higher
Add and subtract within 1,000 (3.NBT.2)
Tug of War
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Answers:
1. 192 feet
2. 475 yuckyfood1s
3. 261 feet
4. 273 feet
Multiply single digits (3.OA.3)
The School Play
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Answers:
1. 18 moos
2. 28 cups of yuckyfood3
3. 27 lines of song
4. 30 minutes, since there are 6 songs total
Divide within 100 (3.OA.3)
Crazy Cupcake Contest
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Answers:
1. 9 cupcakes each
2. 6 rows
3. 18 cupcakes
4. 24 cupcakes each
Identify and create fractions (3.NF.1)
Secret Ice Cream Dream
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Answers:
1. 1/3 each
2. 4 parts, each 1/4
3. 4/6 or 2/3
4. 1/3
Compare and find equivalent fractions (3.NF.3d)
Costume Contest
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Answers:
1. Student4 has more – color3 tentacles
2. Student2 walks farther
3. It’s a tie! They got an equal number of votes
4. There are more color4 M&Ms
Work with area and perimeter (3.MD.7, 3.MD.8)
Secret Snack Fridge
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Answers:
1. 270 square inches
2. 160 square inches
3. 120 square inches, since each sandwich covers 20 square inches
4. 146 inches
Multiply a single digit number by a multiple of 10 (3.NBT.3)
Our New School Pet
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Answers:
1. 80 teeth
2. 250 pieces of food2
3. 810 ice cubes
4. Student3 swam longer, for 240 seconds vs. 210
Interpret quotients as a number of shares or parts in a share (3.OA.2)
Tallest Roller Coaster in Town
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Answers:
1. 3 straightaways
2. 9 car3s
3. 8 tickets each
4. 7 rounds
Use the commutative, associative and distributive properties (3.OA.5)
The Early Worm Gets the Apple
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Answers:
1. They drop the same number, 15 apples – because 3 x 5 = 5 x 3 (commutative property)
2. There are 16 more apples, and the total is now 80 apples (distributive property)
3. 36 apple slices.
4. 2 apples in each – because 2 x 6 x 3 = 6 x 2 x 3
Work with elapsed time (3.MD.1)
Diner Dogs
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Answers:
1. 3:31 pm
2. 58 minutes later
3. 5:09 pm, since 10 + 8 + 8 + 8 minutes have elapsed
4. 12:53 am, since the first batch comes out after 10 + 8 minutes
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