4. Think and write a situation for each of the following expressions.
(a) 5 (7 + 12)
1 (b) 12 x (60 – 20)
9
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Step-by-step explanation:
a. 5 ( 7 + 12 )
5 × 7 + 5 × 12
35 + 60
95
b. 12 × ( 60-20) 9
( 12 × 60 ) - ( 12 × 20 ) 9
( 720 - 240 ) 9
(480) 9
4320
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