CLASS - VII
- Stata which is greater:
a) (8 + 9) X 10
8 + 9 x 10
b) {(-2) (-5)} + 10 or {(-2)+10) x (-5)
2. Verify the following:
ay 15 x {7+ (-2)} = 15 x 7 + 15 X (-2)
by (-23) {(-5) + 19} = (-23) X(-5)+(-23) x 19
3. Solve the following:
a) (-161) + (-23)
by (-2) X(-4) (-6)
4. Solve using suitable property:
a) 1535 x 39 + (-535) X 39
by 38457 x 99-(-38457)
Answers
Answered by
1
Answer:
Step-by-step explanation:
a) (8 + 9) X 10 = 17 X 10 = 170
8 + 9 x 10 = 8 X 90 = 720
(8+9) X 10 < 8+ 9 X 10
b) {(-2) (-5)} + 10 = 10 + 10 = 20
{(-2)+10) x (-5) = 8 x (-5) = -45
{(-2) (-5)} + 10 > {(-2)+10) x (-5)
2) a) 15 x {7+ (-2)} = 15 x 7 + 15 X (-2)
15 x { 5} = 105 - 30
75 = 75
b) (-23) {(-5) + 19} = (-23) X(-5)+(-23) x 19
(-23) {14} = 115 - 437
-322 = 322
3) a) (-161) + (-23) = -184
b) (-2) X(-4) (-6) = (-2)x24 = -48
4) a) 1535 x 39 + (-535) X 39 = 59865 + ( - 20865 ) = 39000
b) 38457 x 99-(-38457) = 38457 x 38556
shashirana182381:
thank u
Similar questions