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Form 2 mathematics lessons about reciprocals

In this courses, learners will learn and understand how to:
i) Find the reciprocals of numbers by division method.
ii) Find the reciprocals of numbers using reciprocal tables/mathematical table.
iii) Evaluate mathematical expressions using reciprocals.

Lessons (10)

• 1.    Finding reciprocals of numbers by division method
  4m 55s

• 2.    Finding reciprocals of numbers from mathematical tables
  10m 9s

• 3.    Computation using reciprocals
  14m 5s

• 4.    Find the reciprocal of each of the following decimal numbers using division: (a) 2.5 (b) 4.2 (c) 9.4
  4m 29s

• 5.    Find the reciprocal of each of the following numbers using reciprocal tables: (a) 56.2 (b) 4368 (c) 0.002978
  3m 48s

• 6.    Use reciprocal tables to work out each of the following: (a) #1/0.0125+1/12.5 # (b) #3/0.364#
  3m 14s

• 7.    Use reciprocal tables to work out each of the following. (a) #17/0.051+3/0.0027# (b) #4/0.375-5/37.5#
  6m 14s

• 8.    Use mathematical tables to work out each of the following: (a) #1/sqrt0.2468# (b) #1/(2.437)^2 #
  5m 20s

• 9.    Use mathematical tables to work out: #3.045^2+1/sqrt49.24#
  3m 28s

• 10.    If #1/f = 1/u +1/v#, find f, given that u = 0.5 and v = 0.8
  2m 24s