(63 x 12) + (37 x 12)
(15x3) + (5x3)
.
(20) + (20)
• (65 x 11) - (55 x 11)
· (2 4X23) - (1}x23) • (13.5 x 40) – (3.5 x 40)
.
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3
Answer:
1200
60
40
110
412.....
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