ISEB Pocket Notes (Key Stage 3) Flashcards
What are the first ten Prime numbers?
2, 3, 5, 7, 11, 13, 17, 19, 23, 29.
What is an Integer?
A whole number (positive, negative or zero).
What is 6 x 7
42
When multiplying by 10 the decimal point moves where
One place to the right
When dividing by 10 the decimal point moves where
One place to the left
When dividing by 100 the decimal point moves where
Two places to the left
When multiplying by 100 the decimal point moves where
Two places to the right
y > 3 means what
y is greater than 3
a < 5 means what
a is less than 5
What is 2 to the power of 3
8 (2 x 2 x 2)
What is 37 rounded to the nearest ten
40
What is 205 rounded to the nearest ten
210
What is 140 rounded to the nearest hundred
100
What is 204 rounded to the nearest ten
200
What is 3.449 written to one decimal place
3.4
What is 3.449 written to two decimal places
3.45
To how many SIGNIFICANT FIGURES is 0.6050 written
4
When ESTIMATING the result of a calculation, first write each number correct to one SIGNIFICANT FIGURE.
3.81 x 9.15
So ————- becomes what
1.73 + 1.06
2 + 1
What is the approximate value of 5.92 x 6.21
36
What is the approximate value of 3.42 x 7.09
21
Ratios. In a class of 7 boys and 8 girls, what is the ratio of boys to girls
7 : 8
Ratios. In a class of 7 boys and 8 girls, what is the ratio of girls to boys
8 : 7
Ratios. In a class of 7 boys and 8 girls, what is the ratio of boys to the class
7 : 15
