gena wants to estimate the quotient of -21.87 divided by 4.79. which expression shows the estimate using…

gena wants to estimate the quotient of -21.87 divided by 4.79. which expression shows the estimate using front - end estimation?\n-21÷4\n-21÷5\n-20÷4\n-20÷5

gena wants to estimate the quotient of -21.87 divided by 4.79. which expression shows the estimate using front - end estimation?\n-21÷4\n-21÷5\n-20÷4\n-20÷5

Answer

Explanation:

Step1: Identify front - end digits

For -21.87, the front - end digit is -20 (rounding to the tens place). For 4.79, the front - end digit is 5 (rounding to the ones place).

Step2: Form the division expression

The division expression for front - end estimation is -20÷5.

Answer:

-20÷5