(1) 16.7 + 19.35 – 6.43 – 2.08
= (16.7 + 19.35) – (6.43 – 2.08)
= 36.05 – 4.35
= 31.7
(2) 100 – 23.75 – 8.08 – 12.009
= (100 – 23.75) – 8.08 – 12.009
= 76.25 – 8.08 – 12.009
= 68.17 – 12.009
= 56.161
(3) 76.3 – 7.666 – 6.77
= (76.3 – 7.666) – 6.77
= 68.634 – 6.77
=61.864
(4) 37.6 + 72.85 – 58.678 – 6.09
= (37.6 + 72.85) – 58.678 – 6.09
= 110.45 – 58.678 – 6.09
= 51.772 – 6.09
= 45.682
(5) 75.3 – 104.645 + 178.96 – 47.9
= (75.3 – 104.645) + 178.96 – 47.9
= -29.345 + 178.96 – 47.9 (Subtraction sign is greater so here, so – is placed)
= 149.615 – 47.9
= 101.715
(6) 213.4 – 56.84 – 11.87 – 16.087
= (213.4 – 56.84) – 11.87 – 16.087
= 156.56 – 11.87 – 16.087
= 144.69 – 16.087
= 128.603