Simple algorithm 75 × 27 + 19 × 25 =?

Simple algorithm 75 × 27 + 19 × 25 =?


75×27+19×25
=(25×3)×27＋19×25
=25×(3×27)＋19×25
=25×81＋19×25
=25×(81＋19)
=2500



How to find (- 5.25) x (- 4.73) - 4.73x (- 19.75) - 25X (- 5.27)?


(-5.25)*(-4.73)-4.73*(-19.75)-25*(-5.27)
=(-4.73)*[-5.25+(-19.75)]-25*(-5.27)
=(-4.73)*(-25)+(-25)*(-5.27)
=(-25)*(-10)
=250



Thirty and one twenty eight times twenty nine twenty eight


First about 28, then (30 * 28 + 1) / 29 = 29

Elden Ring Premiere

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