Which would be the most appropriate way to estimate -6. 1(0. 22)? Check all that apply. Use rounding to get -6(0. 2), and then multiply. Use compatible numbers, such as -6(0. 5), and then multiply. Use the benchmark numbers -6 and 1, and then multiply. Use front-end estimation to get -6(0. 2), and then multiply. Round the factors to the nearest whole number, and then multiply.