Question

solve this problem ​

Answer 1

7550 gm is 7.5 kg

5 square-4 square is 3 square

Answer 2

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2. 5+10-(2×5)÷2
15-(10)÷2
15-5
10
3. 7500 gm=7.5 kg

4. (5)^square-(4)^square=( )^square
25-16
9=()^square
$\sqrt{9}$
=3