Write down the quotient when 105 is divided by 7.

(80 x 5) – (80 ÷ 5) =

Express 2047 in standard notation.

Insert one of the symbols <, >, = to make this statement correct.

1½ + 1 =

1.5  –  2.3  =

3.6 – (1.8 – 0.6) =

Approximate 79 256 to 3 significant figures.

Give the answer to (0.07 x 0.08) correct to three decimal places.

If x = 4, y = 2, z = 0, evaluate

(xy + z) / y

2 + a = 0,  so  a =

Write in the next two terms of the sequence