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Lattice
Estimating Product
Word Problems
Rounding Big Numbers
Scientific Notation
100
56 x 7 = ?
392
100
22 x 7 = ?
20 x 10 = 200
100
GIVE ESTIMATION An average of about 23 new species of insects are discovered each day. About how many new species are discovered in one year?
20 x 400 = 8,000 new species 20 x 370 = 7,400 new species
100
Round 145 to the nearest tens place
150
100
Write 10 x 10 x 10 in scientific notation.
10 to the 3rd power.
200
98 x 12 = ?
1,176
200
34 x 13= ?
30 x 10 = 300
200
GIVE EXACT ANSWER A housefly beats its wings about 190 times per second. That's how many times per minute?
190 x 60 = 11,400 times per minute
200
Round 2,468 to the nearest hundreds place.
2,500
200
Give your answer in standard form. 10 x 10 x 10 x 10 x 10= ?
100,000
300
96 x 21 = ?
2,016
300
45 x 62 = ?
50 x 60 = 3,000
300
GIVE ESTIMATION A blue whale weighs about as much as 425,000 kittens. About how many kittens weigh as much as 4 blue whales?
400,000 x 4 = 1,600,000 kittens 400,000 x 5 = 2,000,000 kittens 430,000 x 4 = 1,720,000 kittens 430,000 x 5 = 2,150,000 kittens
300
Round 57,008 to the nearest thousands place.
57,000
300
What is 10 to the 7th power in standard form?
10,000,000 (ten million)
400
123 x 43 = ?
5, 289
400
469 x 28 = ?
470 x 30 = 14,100 500 x 30 = 15,000
400
GIVE EXACT ANSWER An average bee can lift 373 times its own weight. If a 170-pound person were as strong as a bee, how many pounds could this person lift?
373 x 170 = 63,410 pounds
400
Round 864,231 to the nearest hundred thousands place.
900,000
400
What is 6 x 10 to the 3rd power?
6,000
500
772 x 461 = ?
355,892
500
123 x 567 = ?
120 x 570 = 68,400 100 x 600 = 60,000 120 x 600 = 72,000 100 x 570 = 57,000
500
GIVE EXACT ANSWER One student in Ms. Ordille's math class smiles 82 times per day. How many times does the whole class smile in one week?
82 x 20 = 1,640 x 7 = 11,480 times in one week
500
Round 9,999 to the nearest tens place.
10,000
500
What is 3.5 x 10 to the 8th power?
35,000,000 (35 million)