Mental Math
360 ÷ 60 =
6
287 ÷ 42
280 ÷ 40 = 7
Solve using partial quotients:
631 ÷ 14
40 and 5 = 45
196 ÷ 14
14
There are 16 rows of chairs in the auditorium. Each row has the same number of chairs. There are 512 chairs in all. How many chairs are in each row?
512 ÷ 16 = 32 chairs
6,300 ÷ 90 =
70
412 ÷ 84 =
400 ÷ 80 = 5
Solve using partial quotients:
610 ÷ 16
30 and 8, remainder 2 = 38 R2
544 ÷ 17
32
Paula wants to divide 480 tomatoes equally among 80 baskets. How many tomatoes will Paula put in each basket?
480 ÷ 80 = 6 tomatoes
21,000 ÷ ____ = 700
30
1,710 ÷ 32
1,800 ÷ 30 = 60
Solve using partial quotients:
875 ÷ 25
30 and 5 = 35
333 ÷ 30
11 R3
A school has 617 students. Each class has between 28 and 32 students. Estimate the number of classes in the school.
600 ÷ 30 = 20 classes
____= 42,000 ÷ 70
600
7,810 ÷ 44
8,000 ÷ 40 = 200
Solve using partial quotients:
286 ÷ 13
20 and 2 = 22
885 ÷ 28
31 R17
The Port Lavaca fishing pier is 3,200 feet long. There is one person fishing for each ten feet of the length. Write and solve an equation to find how many people are fishing from the pier.
3,200 ÷ 10 = f
f=320
1,500 tens ÷ 3 tens =
500
5,700 ÷ 58
5,800 ÷ 58 = 100
Solve using partial quotients:
976 ÷ 42
20 and 3, remainder 10 = 23 R10
979 ÷ 18
54 R7
At an automobile plant, each car is inspected by 34 different workers before it is shipped to a dealer. One day, workers performed 9,690 inspections. How many cars were shipped?
9,690 ÷ 34 = 285