1. Work out
12 ×
–13
а) –25; b)
256;
c) 25; d) –156.
2. Work out
–24 ×
–16
а) 384; b) –40;
c) –384; d) 40.
3. Work out
–17 ×
14
а) 238; b) 31;
c) –238; d) –31.
4. Work out
–23 ×
–34
а) –57; b) 782;
c) 57; d) –782.
5. Work out
–2 ×
–2 × –2
а) –8; b) –4;
c) 8; d) 4.
6. Work out
–2 ×
–2 × –2 × –2
а) –16; b) 8;
c) 16; d) –8.
7. Work out
–3 ×
–3 × –3
а) 9; b) 27;
c) –9; d) –27.
8. Work out
–4 ×
2 × –4
а) –32; b) –38;
c) 32; d) 38.
9. Work out
–10 ×
–1 × 3 × –2
а) 30; b) –60;
c) –30; d) 60.
10. Work out
(6 +
2) × (–4 + 3)
а) 6; b) 8;
c) –6; d) –8.
11. Work out
–6 + 2 ×
4 + 3
а) –16; b) 5;
c) 16; d) –5.
12. Work out
(6 +
2) × (–4) + 3
а) –36; b) –29;
c) 36; d) 29.
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