Number interpretation

Two numbers, which differ by 3 and have a product of 88. Find them

The product of two consecutive odd numbers is 143. Find the numbers. (Hint: if the first odd number is x , what is the next odd number ?)

The temperature at 07 00 is -3°C

This temperature is 11°C higher than the temperature at

01 00 . Find the temperature at 01 00

Jodi swims 22 lengths of a swimming pool to raise money for charity. She receives $15 for each length she swims.

Calculate how much money Jodi raised for charity.

a) Write 0.046875 correct to 2 significant figures.

b) Write 2,760,000 in standard form.

Find a square number between 30 and 40.

Find all prime numbers between 60 and 70.

without using a calculator, work out 

1/12 x 1(1/5)

Give your answer in lowest term. 

32ⁿ = 1

Find the value of n.

Insert one pair of brackets to make this calculation correct.

7 - 5 - 3 + 4 = 9