Single Digit Multiplication
47 x 9
423
289 x 16
4,624
The West Rock School District ordered 118 cartons of math books. The books were shipped in cartons that each held 36 books. Estimate the total number of books shipped.
120 x 40 = 4,800 books
100 x 40 = 4,000 books
Iliana has 142 songs on her phone. Dentri has 11 times as many on her phone. How many songs does Dentri have on her phone?
1,562 songs
12 x 100
12
1,012 x 5
5,060
315 x 62
19,530
Estimate 36 x 391
Over or underestimate?
40 x 400 = 16,000
Overestimate
There are 36 large fish tanks at the zoo. Each tank holds 205 gallons of water. How many gallons of water would it take to fill all of the tanks?
7,380 gallons
Does 7.9 x 104 = 7,900?
No, it should be 79,000.
1,276 x 4
5,104
67 x 24
1,608
Estimate 61 x 73
Over or underestimate?
60 x 70 = 4,200
Underestimate
A banana contains 105 calories. Last week, Logan and Collin ate a total of 14 bananas. How many total calories did they eat?
1,470 calories
5.6 x 103
5,600
642 x 6
3,852
860 x 70
60,200
At a warehouse, 127 delivery trucks were loaded with 48 packages on each truck. Estimate the total number of packages on the trucks.
100 x 50 = 5,000 packages
130 x 50 = 6,500 packages
Mrs. Blevins works 178 hours each month. How many hours does she work in a year?
2,136 hours
700 x 100
70,000
1,520
963 x 74
71,262
Estimate 376 x 290
Over or Underestimate?
400 x 300 = 12,000
Overestimate
Olivia has 228 e-book on her e-reader. Aubriella has 14 times as many e-books. How many e-books does Aubriella have on her reader?
3,192 e-books
What is the best NFL team?
Chiefs