Question

divide. use base - ten blocks.

1. $4.9\div7 = $
2. $6.48\div4 = $

Explanation:

Step1: Solve \(4.9 \div 7\)

We can think of \(4.9\) as \(49\) tenths. So, \(49\) tenths divided by \(7\) is \(7\) tenths, which is \(0.7\). Mathematically, \(4.9\div7 = \frac{4.9}{7}=0.7\).

Step2: Solve \(6.48 \div 4\)

First, divide the whole number part: \(6\div4 = 1\) with a remainder of \(2\). Then, bring down the \(4\) to make \(24\) tenths. \(24\) tenths divided by \(4\) is \(6\) tenths (\(0.6\)). Next, bring down the \(8\) to make \(8\) hundredths. \(8\) hundredths divided by \(4\) is \(2\) hundredths (\(0.02\)). Now, add the results together: \(1 + 0.6+0.02 = 1.62\). Mathematically, \(6.48\div4=\frac{6.48}{4} = 1.62\).

Answer:

For \(4.9\div7\), the answer is \(0.7\).
For \(6.48\div4\), the answer is \(1.62\).