Question

Jax buys 33 packs of cookies, while Jane buys 29 packs of noodles. How many items did they buy in total?

• A. 53
• B. 62
• C. 52
• D. 59

Answer 1

The correct option is B 62

Say:
Let us find the total items Jax and Jane buy using rods and units and breaking down the numbers into Tens and Ones. We know that Jax buys 33 packs of cookies and Jane buys 29 packs of noodles, so the equation framed to find the total number of items they buy is 33 + 29 = __.

Steps:

• The first addend 33 will be broken down into 3 Tens and 3 Ones, represented by 3 rods and 3 units.
• The second addend 29 will be broken down into 2 Tens and 9 Ones, represented by 2 rods and 9 units.
• First, add the Ones, i.e., 3 + 9 = 12
• Next, add the Tens, 30 + 20 = 50
• Further, regroup and add the Tens and Ones, i.e., 50 + 12 = 62, represented by 6 rods and 2 units.
• Therefore, they buy 62 items in total.
• Hence, option D is the answer.

WB: If required, use the whiteboard to break down the numbers and draw rods and units to solve the equation as shown.