Multiplication and Division Concepts 155Rigorous Problem Solving with the Concept of
Near Tens for Multiplication 2
The Taylor Chocolate Factory produces chocolates in boxes.
The number of chocolates in each box is based on the type
and size of the chocolates. Kayla bags the boxes and adds a
label with the total number of chocolates.
Part A
The fi rst bag contained 9 boxes of 6 chocolates. Which
equation uses a place value strategy to represent the total
number of chocolates?
o 9 x 10 = (10 x 10) – (6 x 10)
o 9 x 6 = (10 x 6) + (1 x 6)
o 9 x 6 = (10 x 6) – (1 x 6)
o 9 x 6 = 90–6
o 9 x 6 = (9 x 9) – 3
Part B
What if the second bag of chocolates contained 9 boxes of 9
chocolates?
Justify your answer with an equation that uses a place value strategy.
Part C
How many total boxes in both bags?
© 2016, Math Intervention: Grades 3–5, Jennifer Taylor-Cox, Routledge