Question

ets start a new one today.
quiz 3
google classroom microsoft teams
complete the equations.
$489 = 4 \text{ hundreds } + 8 \text{ tens } + 9 \text{ ones}$
$489 = 0 \text{ hundreds } + \boxed{\text{i}} \text{ tens } + 9 \text{ ones}$
$489 = 0 \text{ hundreds } + 0 \text{ tens } + \square \text{ ones}$

Explanation:

Step1: Solve for the number of tens

We know that \( 489 = 0\times100 + x\times10 + 9\times1 \). Simplify the right - hand side: \( 0 + 10x+9\). Set it equal to 489: \( 10x + 9=489 \). Subtract 9 from both sides: \( 10x=489 - 9=480 \). Then divide both sides by 10: \( x = \frac{480}{10}=48 \).

Step2: Solve for the number of ones

We know that \( 489=0\times100 + 0\times10 + y\times1 \). Simplify the right - hand side: \( 0+0 + y=y \). So \( y = 489 \).

Answer:

For the tens place: 48; For the ones place: 489