Question

Q11. Simplify by using suitable properties (also state them ):

(a) 71 x 56 + 29 x 56

(b) 135 x 52 + 135 x 48

(c) 16825 x 16825 – 16825 x 6285

(d) 569 x 17 + 569 x 13 + 569 x 70​

Answer 1

Answer:

(1) 71×56=3976+29=4005×56=224280

(2) 135×52=7020+135=7155×48=343440

(3)1685×1685=2839225-16825=2837540×6825=17833938900

(4) 569×17=9673+569=10242×13=133146+569=133715

×70=9360050