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1. (3 x 5) + (6 x 5) = (16 x 5) – (________ x 5)
2. (3 x 8) + ( ________ x 8) = 13 x 8

Sagot :

Polyblock

Answer:

(3 x 5) + (6 x 5) = (16 x 5) – (7 x 5)

(3 x 8) + (10 x 8) = 13 x 8

Step-by-step explanation:

(3 x 5) + (6 x 5) = (16 x 5) – (________ x 5)

(15) + (30) = 80 – ( ____ x 5)

45 = 80 – ( ____ x 5)

We need to subtract 35 from 80 for it to equal 45

7 x 5 = 35, so fill in 7 in the blank

45 = 80 – (7 x 5)

45 = 80 – 35

45 = 45

(3 x 8) + ( ________ x 8) = 13 x 8

(24) + ( _______ x 8) = 104

We need to add 80 to 24 for it to equal 104

8 x 10 = 80, so fill in 10 in the blank

(24) + (10 x 8) = 104

(24) + (80) = 104

104 = 104

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