Power and Roots
What is the square root of 64
8
If it takes John 20 minutes to run 4 kilometres, how long will it take John in run 2 kilometres?
10 minutes
Estimate 68.2% as a fraction in simplest form
7/10
Express 2.3% as a percent and fraction
0.023 23/1000
what is 7 squared?
49
Saffron is the most costly spice (by mass) in the world. It costs $3000 for 1 kg. About how much would a package of 4 g of saffron cost?
$12
Estimate 982% as a mixed number in simplest form
9 4/5
Express 0.0845 as a percent and fraction
84.5% 845/10000
What does the multiplication sentence: 8*8=64 tell you about a square root?
the square root of 64 is 8
If Hamilton wrote 51 papers in 6 months, how many papers can Hamilton write in a year?
102
Find the price including tax of a meal that cost $96 if tax is 10%
$105.60
Express 17/1000 as a percent and decimal
0.017 1.7%
How do you know the square root of 26 is not a a whole number?
5 squared is 25 and 6 squared is 36, 26 is between 25 and the 36 so the square root of 26 must be between 5 and 6, making it not a whole number
If you drive at 90 km/h for 35 minutes, about how far will you get?
52.5km
Find the price of a meal before tax if Joshua paid $110 if tax is 10%
$100
Express 36.9% as a decimal and fraction
0.369 369/1000
How do you know that the square root of 82 must be a little more than 9 but less than 10?
9 squared is 81, while 10 squared is 100, since 82 is between 81 and 100, the square root of 82 must be between 9 and 10.
The Niagara River flows at about 32 km/h at the crest of Niagara Falls. How fast does the water move in metres per second?
Around 9m/s
How much would a family’s $100 meal at a restaurant cost if they add 15% sales tax and then an 20% tip?
$138
Express 0.054 as a percent and fraction
05.4% 54/1000