Back to Properties of Operations: Commutative, Associative, and Distributive — Problem 4 · Task Set 9

Exercises: Properties of Operations: Commutative, Associative, and Distributive

Work through each section in order. Show your work where indicated. For the mental-calculation problems, use whichever property makes the arithmetic easiest.

Grade 7·18 problems·~28 min·Uganda NCDC Primary 7 Mathematics·lesson·operations-01

Work through problems with immediate feedback

Fluency Practice

Factorise $9 \times 23 + 9 \times 7$ by taking out the common factor.

$9 \times (23 + 7)$

$9 \times 9 \times (23 + 7)$

$(9 + 9) \times (23 + 7)$

$9 \times (23 \times 7)$