Question

i) Add 4 x 106 + 6 x 105

ii) Subtract 1.2 x 105

from 1.6 x 105

iii) Multiply 3.2 x 106 X 4.2 x 104

iv) Divide 4.4 x 106 by 4.0 x 105​

Answer 1

Answer:

$4 \times 106 + 6 \times 105 \\ 424 + 630 = 1054$

$1.2 \times 105 - 1.6 \times 105 \\ 126 - 168 \\ - 42$

$3.2 \times 106 \times 4.2 \times 104 \\ 339.2 \times 436.8 \\ 148162.56$

$4.4 \times 106 \div 4.0 \times 105 \\ 466.4 \div 420 \\ = 1.1104761905$