Answer:
1. 16 cm (squared)
3. 200 cm (squared)
Step-by-step explanation:
Answer:
-7.8
Step-by-step explanation:
In the <span>addition process</span> this usually involves:
<span><span>rounding numbers up to the nearest multiple of 10 or 100 </span>subtracting the extras that were added at the end.</span>
In the subtraction process this usually involves subtracting too much and completing the calculation by putting some back.
