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1) (3.45 x 10 3 ) + (6.11 x 10 3 ) a) 9 .56 X10 3 b) 956 X 10 3 c) 8.673 X 10 5 2) (4.12 x 10 6 ) + (3.94 x 10 4 ) a) 249 . 2 x 10 3 b) 4.1594 x10 6 c) 41594 x10 3 3) (8.96 x 10 7 ) – (3.41 x 10 7 ) a) 55.5 x 10 6 b) 555 x 10 4 c) 5.55 x10 7 4) (4.23 x 10 3 ) – (9.56 x 10 2 ) a) 3.274 x 10 3 b) 3274 x 10 2 c) 32 . 74 x 10 3 5) (1 . 23 x 10 -3)-( 2.34 x 10 -2 ) a) -2217 x 10 -1 b) - 22.17 x 10 -3 c) -2.217 x 10 -2 6) ( 5.67 x10 -2)+( 3.42 x 10 -4 ) a) 89 . 45 x 10 -1 b) 5.7042 x 10 -2 c) 90.75 x10 -5

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