$$(2.75 \times 10^{ 7 } )+( 1.23 \times 10^{ 8 } )$$
$150500000$
$$2.75\times 10000000+1.23\times 10^{8}$$
$$27500000+1.23\times 10^{8}$$
$$27500000+1.23\times 100000000$$
$$27500000+123000000$$
$$150500000$$
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$7\times 43\times 2^{5}\times 5^{6}$
