multiplication and division
Estimate by rounding to the nearest 100.
376 X 731
400 X 800 = 320,000
What is 4,567,273 rounded to the nearest
hundred thousand?
4,600,000
Add. then simplify.
3/8 + 2/8 + 1/8 =
6/8 = 3/4
10 X 490 =
4,900
What is the answer to a multiplication problem called?
Product
900 X 9
8,100
Bob bought 3 kg of hamburgers, 5 kg of hot dogs, and 2 kg of steak for a barbecue. How many grams of meat did he buy?
1 kg = 1,000 grams so he bought 10,000 grams.
Change to an improper fraction?
2 and 1/8
17/8
200 X 2 =
400
Howard arrived at work at 5:50 am. He stayed at work for 5 hours and 10 minutes. What time did he leave work?
11:00 am
6 X 5 X 25
750
What is 47,000 - 29,999 =
17,001
Change to a mixed number.
26/3
8 and 2/3
120 + 120 + 20 + 20 + 1 =
281
What are the first 4 multiples of 7?
7, 14, 21, 28
Estimate to the nearest 10.
24 X 58 =
20 X 60 = 1,200
What is the area of a rectangle that is 25 cm long and 15 cm wide?
375 sq. cm
What is 3/10 + 40/100 ?
70/100
4 X 15 =
60
What form is this written in?
3,000 + 200 +5
Expanded form
58/5 =
11 R 3 or 11 and 3/5
Write this (say each number) in standard form: 1 million, 657 thousand, eighty-two
1,657,082
What is 5 and 4/8 + 4 and 5/8?
9 and 9/8 = 10 and 1/8
4 X 6 + 5 X 4 =
24 + 20 = 44
What are all the factors of 40?
(1, 2, 4, 5, 8, 10, 20, 40)