Multiplication Comparisons
108 = 9 X 12
Write a comparison sentence
____ is _____ times as many as _____
108 is 9 times as many as 12
Complete the pattern
3 X 8 = 24
3 X 80 =
3 X 800 =
3 X 8,000 =
240, 2,400, 24,000
Estimate by rounding
3 X 165
3 X 200 =600
9 X 57
513
There are 104 students in the fourth grade at Suvi's school. One day, 15 fourth-graders were absent. How many fourth-graders were at school that day?
89 students
8 X 4 = 32
Write a comparison sentence
8 times as many as 4 is 32
9 X 8,000 =
72,000
Estimate by rounding
4 X 86
4 X 90 = 360
6 X 46
276
Center city has a population of twenty-one thousand, seventy people. Write the population in standard and expanded form.
21,070
20,000+1,000+70
Write a comparison sentence
5 X 7 = 35
5 times as many as 7 is 35
12 X 500 =
6,000
Estimate by rounding
5 X 2,213
5 X 2,000 = 10,000
3 X 241
723
Naveena walks her dog 3 times a day. Each time she walks her dog, she walks 1,760 yards. How many yards does she walk her dog in 3 days?
5,280 yards
There are 8 students in the art club. There are 3 times as many students in chorus. How many students are in chorus?
There are 24 students in chorus
6 X 500 =
3,000
Estimate the product by finding two numbers the exact answer is between.
4 X 385
4 X 300 = 1200
4 X 400 = 1600
1200 and 1600
8 X 625
5,000
The fourth-grade students at Riverside School are going on a field trip. There are 68 students on each of the 4 buses. How many students are going on the field trip?
272 students
Vlad has 3 times as many guppies as goldfish. If he has 28 fish, how many guppies does he have?
Vlad has 21 guppies
8 X ______ = 3,200
400
Estimate the product by finding two numbers the exact answer is between.
8 X 7,498
56,000 and 64,000
30 X 63
1,890
There are 5,280 feet in one mile. Fatima likes to walk 5 miles each week for exercise. How many feet does Fatima walk each week?
26,400 feet