Question

match each expression to a reasonable estimate.
186 ÷ 6
98 ÷ 2
43 ÷ 4
answer bank
10
50
30

Explanation:

Step1: Estimate \(186 \div 6\)

We can approximate \(186\) as \(180\) (since \(180\) is divisible by \(6\)). Then \(180\div6 = 30\). So \(186\div6\) is close to \(30\).

Step2: Estimate \(98 \div 2\)

We can approximate \(98\) as \(100\) (a number easy to divide by \(2\)). Then \(100\div2 = 50\). So \(98\div2\) is close to \(50\).

Step3: Estimate \(43 \div 4\)

We can approximate \(43\) as \(40\) (since \(40\) is divisible by \(4\)). Then \(40\div4 = 10\). So \(43\div4\) is close to \(10\).

Answer:

• \(186 \div 6\) matches \(30\)
• \(98 \div 2\) matches \(50\)
• \(43 \div 4\) matches \(10\)