Multiplying and Dividing Negative Numbers 1. Work out the following: a 5 ×– 7 e -3 × -9 b -3 ×– 2 f -8 × 4 c 8 ×– 11 g -5 × 8 d -5 × 8 h -2 ×– 4 i j k l -1 ×– 9 -10 × -3 -2 × 9 ×– 2 -8 × 4 ×-1 m n o p -16 × 12 (-4)2 (-3)3 -11 × -5 ×– 20 2. Work out the following : a -20 ÷ 5 e -18 ÷ -3 b -32 ÷ 8 f 50 ÷ -5 c -16 ÷ -8 g 81 ÷ -9 d -63 ÷ 7 h 27 ÷ -3 i j k l -12 ÷ -4 -35 ÷ 5 -35 ÷ -7 -90 ÷ -3 m n o p 208 ÷ -13 -315 ÷ -21 -216 ÷ 18 -256 ÷ -32 3. These are a mixture of all 4 operations. Be careful: a -4 + -2 e 8 + -2 i -4 × 11 b -6 × -10 f -24 ÷ -3 j -3 + -12 c 5 - -3 g -10 - -8 k 96 ÷ -8 d -80 ÷ 20 h -2 × -7 l 9 - -4 + -2 4. Don’t forget to follow BODMAS in these questions i ( − 5 ) 2 + −2 q a ( −2 )4 b c d e 2 × −2 + −4 × −8 ( −1) 3 3 + 3 × −10 ( −2 ) 3 +1 f 11× 2 ÷ −1 g 18 ÷ −6 + −1 h 24 ÷ 12 + ( −2 )2 j k l m −5 + 5 × −5 − 5 ÷ 5 − ( 5 ) + −10 ÷ −2 2 −3 × 8 − 3 × −1 ( −6 ) ÷ ( −4 − −8) 2 n −3 × −7 + 12 ÷ −2 o 10 − 3 × (−5 + 1) p 22 + 9 × −2 m -13- -15 + -9 n -165 ÷ -11 o -50 + -32 - -1 p -32 × -9 −100 ÷ (−5 − −9) + 2 r s −96 ÷ −8 − (15 − −3) ÷ 9 t u −12 − −8 × 3 ÷ 6 −1× ( 40 + 3 × −4 − −1) − ( 2 ) + 48 ÷ 22 2