Question

While growing vegetables, \(5\) onions and \(9\) radishes are planted. Fill in the empty boxes and find the number of vegetables that were planted in total using the make a ten strategy.

Answer 1

Say: Let’s read the question and observe the given incomplete solution.

Ask:
\(\bullet\) How can we find the total number of vegetables planted?
Ans: By adding the number of onions and radishes that are planted.
\(\bullet\) What strategy is asked to be used?
Ans: Make a ten strategy
\(\bullet\) How can we use this strategy to add?
Ans: To use make a ten strategy to add, we have to first break down one of the addend such that one of the decomposed numbers when added to the other addend will make \(10\). Then add the other remaining decomposed number with \(10\) to find the answer.
\(\bullet\) Which two numbers do we need to add here?
Ans: \(5\) and \(9\)
\(\bullet\) What numbers can we break down \(5\) into, and why?
Ans: We need to break down\( 5\) into \(4\) and \(1\) because \(1,\) when added to the other addend \(9\), makes \(10.\)
\(\bullet\) Is \(10\) the answer, then?
Ans: No, we have to add \(4\) and \(10\) to find the answer.
\(\bullet\) What is \(10 + 4\) ?
Ans: \(14\)
\(\bullet\) What are the missing numbers?
Ans: \((i) 4, (ii) 1, (iii) 4,\) and \((iv) 14\)
\(\bullet\) What is the total number of vegetables planted?
Ans: \(14\)
Hence, option B is the correct answer.

WB: If required, use the whiteboard to complete the given solution.