Question

which number do you think is a reasonable estimate for $48 \div 9$?
lets play \make it reasonable!\
first, make an expression that is close to $48 \div 9$ and easier to solve. choose the number that is a multiple of 9.
round 3: estimate $187 \div 6$.
first, make an expression that is close to $187 \div 6$ and easier to solve. choose the number that is a multiple of 6.
$180 \div 6$
now, find a reasonable estimate. complete the sentence.
$180 \div 6 = \boldsymbol{?}$, so $187 \div 6$ is about $\boldsymbol{?}$

Explanation:

For \( 48 \div 9 \):

Step1: Find multiple of 9 near 48

Multiples of 9: \( 9, 18, 27, 36, 45, 54, \dots \)
45 is closest to 48. So use \( 45 \div 9 \).

Step2: Calculate \( 45 \div 9 \)

\( 45 \div 9 = 5 \)
So a reasonable estimate for \( 48 \div 9 \) is 5.

For \( 187 \div 6 \):

Step1: Calculate \( 180 \div 6 \)

\( 180 \div 6 = 30 \)

Step2: Estimate \( 187 \div 6 \)

Since 187 is close to 180, \( 187 \div 6 \) is about 30.

Answer:

s:

• Reasonable estimate for \( 48 \div 9 \): \( \boldsymbol{5} \)
• \( 180 \div 6 = \boldsymbol{30} \), so \( 187 \div 6 \) is about \( \boldsymbol{30} \)