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24 to 8 to 12
Simple calculation: 75 × 64-64 × 65
(75-65)*64=10*64=640
75 × 35 + 64 × 19. 75 + 19
75 * (35 + 64 + 1) = 19. 75 * 100 = 1975
35 × 24 + 24 × 65 (simple calculation)
emergency
35×24+24×65
=24 × (35 + 65)
=24 × 100
=2400
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