Question

5. Find the product, using suitable properties:
26x (-48) + (-48) X (-36) a
-15 * (-25) * (-4) *(-10)
Te) 625 % (-35) + (-625) x 65
F17) (-29)
6) 8 x 53 x (-125)
(d) (-41) 102 C
0 7x(50 - 2)
(h) (-57) * (-19) +57 S
di​

Answer 1

Answer:

(i) 26×(-48)+(-48)×(-36)

Step-by-step explanation:

Group (-48) together and then it will be

(-48) × (26+-36)

=(-48)×(-10)

=480

(ii) (-15)×(-25)×(-4)×(-10)- By using associative property

=(-15×-10) × (-25×-4)

= 150×100

=15000

(iii) 625×(-35)+(-625)×65

Transfer the negative sign of 35 to 625,so the question would be

(-625)×35+(-625)×65, group 625 together and solve.

(-625)×35+(-625)×65

=(-625)×(35+65)

=(-625)×100

=(-62500)

(iv)(-17)×(-29)-By using distributive property

=(-17)×(-30+1)

=(-17)×(-30)+(-17)×1

=510+-17

=493

(v)8×53×(-125)

=(-125×8)×53

=(-1000)×53

=(-53000)

(vi) (-41)×102 By using distributive property

=(-41)×(100+2)

=(-41)×100+(-41)×2

=(-4100)+(-82)

=(-4182)

(vii)7 ×(50-2) By using distributive property

=7×50 -7×2

=350-14

=336

(viii) (-57)×(-19)+57

=(-57)×(-20+1) +57

=(-57×-20+-57×1) +57

=1140+(-57) +57

=1140+0

=1140