Class VI

a + (-a) = 0
  1. Additive Inverse Property
  2. Additive Identity Property
  3. Multiplicative Inverse Property
  4. Commutative Property of Addition
a + b = b + a
  1. Associative property of addition
  2. Commutative property of addition
  3. Distributive property of addition
  4. Zero property of addition
(ab) c = a (bc)
  1. Associative property of multiplication
  2. Identity properties addition
  3. Multiplicative Inverse Property
  4. Commutative property of multiplication
10 - x means
  1. 10 is subtracted x times
  2. x is subtracted 10 times
  3. x is subtracted from 10
  4. 10 is subtracted from x
Radha is drawing a dot Rangoli (a beautiful pattern of lines joining dots with chalk powder. She has 10 dots in a row. How many dots will her Rangoli have for r rows?
  1. 10 – r
  2. 10 + r
  3. 10r
  4. None of these
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