Numbers for Counting
Fractions and Decimals
Scientific Notation
Roots and Radicals
Exponents
100
The bakers in a bakery take 7 cupcake trays out of the oven with 65 pieces on each. Then they pack them in bags of 8 units and sell them for €2 a bag.
How much money is collected in the till, taking into account that during the bagging process 13 cupcakes were damaged?
€110
100
Find the equivalent to this fraction: (60)/(126) if the denominator is 42.
(20)/(42)
100
Write 0.000000000000097 in scientific notation
9.7 x 10-14
100
6√64 =
2
100
210 x 510 =
1010
200
How many ways can 3 different books be assigned to 6 students?
120
200
Draw (23)/(5) on a number line.
=4 (3)/(5)
______________________________
2 3 4 @ 5 6
200
Express 6,274,344,825 in scientific notation, rounding to the tens of millions.
6.27 x 109
200
√14400 =
120
200
(1.8 × 102)/7.5
2.4 x 101 OR 24
300
|3 – 3 x (–7) – |5 x (–8)|| =?
16
300
Find 5.018181818... as a fraction.
(276)/(55)
300
7.25 x 104 – 5.83 x 104 =
=1.42 x 104
300
Simplify the radical: 4√55 =
5 4√5
300
((-13)/(7))0 =
1
400
How many ways can we get from A to C passing through B?
50
400
What is (3)/(28) of 4004?
429
400
In 18 grams of water (H2O) there are 6.022 · 1023 elementary molecules (Avogadro's number). How many elementary molecules are there in one gram of water?
3.346 x 1022
400
3√7 x 3√49 =
7
400
Write the answer as a fraction:
((62) x (92))/((23) x (-32) x (42)) =
81/32
500
A language academy offers English, French and Chinese classes. You can study one or two of these languages, but not all three. There were 120 people enrolled in the last course: 80 in English and 51 in French, of which 16 were enrolled in both languages. In addition, we know that there were 7 in English and Chinese, and another 7 in French and Chinese. How many people were enrolled in Chinese?
19
500
Use a calculator to find which fraction corresponds with this decimal: 3.701010101....
(1832)/(495)
500
Solve and write in scientific notation: 3.214 x 10–4 – 9.58 x 10–5 =
2.256 x 10-4
500
Find the perimeter and area of rectangle ABCD such that: AB = 3 + √2 cm and BC = 1 + 2√2 cm. Write your answers as a + b√2, where a and b are natural numbers.
Perimiter: 8 + 6√2 cm
Area: 7 + 7√2 cm2
500
((25) x (32) x (4-1))/((23) x (9-1)) =
81