Half a Problem
Nina and Margaret are having a pizza eating contest. Nina eats 5 ⅓ pizzas, and Margaret eats 5 ¼ pizzas. How much pizza do they eat together?
10 7/12 pizzas
73 x 72 =
75
72 =
49
2 x 105 x 3 x 103
6 x 108
Write without scientific notation:
6 x 105
600 000
Lars walks 2 ⅔ km to school, Karin walks 2 11/18 km to school. Who walks farther, and by how much?
Lars by 1/18
12^2/12^4
12-2
2-3 =
1/8
(8xx10^9)/(4xx10^5)
2 x 104
Write in scientific notation:
4 300 000
4,3 x 106
Anna writes 2 ½ pages on her English assessment. Brittany writes ¾ as much. How many pages does Brittany write?
1 ⅞ pages.
4^3/4^-6
49
33 x 70 =
27
6 x 103 x 7 x 10-2
4,2 x 102
Write without scientific notation:
4,23 x 10-5
0,000 0423
Charlie, David, Estrid, and Frans are doing a job. Charlie does ⅓ of it, David does ⅛ of it, and Estrid does ½ of it. How much does Frans do?
1/24
(8^2 xx 8^-3) /8^7
8-8
34 - 33 =
54
(4xx10^-2)/(8xx10^-3)
5
Write in scientific notation:
70 million
7 x 107
In a class of 35 students 5/7 take the bus to school. 3/5 of those who take the bus are from out of town. 60% of those who take the bus from out of town are girls. How many girls in the class take the bus from out of town?
9
(5^3 xx 5^x)/(5^-2)=1
x = -5
4^3 / 2^3 - 3xx(-3)^-2
7 ⅔
One study found that the weight of one bacterium was about 9 x 10-13 g. An African Forest Elephant weighs about 2,7 x 103 kg. How many bacteria does it take to weigh the same as an elephant?
3 x 1018 bacteria
Write in scientific notation:
250 millionths
2,5 x 10-4