What approximate value should come in place of the question mark (?) in the following questions? You are not expected to calculate the exact value.
$$19.003\times22.998-280.010=?$$
In order to find the approximate value of $$19.003\times22.998-280.010$$, we use the approximate values of each of the entities
$$19.003 \approx 19$$
$$22.998 \approx 23$$
$$280.010 \approx 280$$
So, the equation is approximately equal to $$19 \times 23 - 280 = 437 - 280 = 157 \approx 160$$
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