Find the value of $0.3\times10$0.3×10.
Find the value of $0.69\times10$0.69×10.
Find the value of $0.0034\times10$0.0034×10.
Find the value of $0.547\times10$0.547×10.
multiply and divide decimals by multiples of powers of 10 without a calculator, applying knowledge of place value and proficiency with multiplication facts; using estimation and rounding to check the reasonableness of answers