My Math Forum exploring elementary exercise

 Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion

 December 7th, 2018, 05:03 AM #1 Senior Member   Joined: Nov 2011 Posts: 243 Thanks: 2 exploring elementary exercise The exercise is: $\ \ \$ 53 $-$ 26 ----- What should the pupil have to know to solve this exercise? What is the preliminary knowledge they need to solve the exercise? Last edited by skipjack; December 7th, 2018 at 11:10 AM.
 December 7th, 2018, 05:07 AM #2 Math Team   Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 13,612 Thanks: 954 26 + ? = 53 Thanks from shaharhada
 December 7th, 2018, 07:37 AM #3 Global Moderator     Joined: Oct 2008 From: London, Ontario, Canada - The Forest City Posts: 7,885 Thanks: 1088 Math Focus: Elementary mathematics and beyond 13 - 6 = 7 40 - 20 = 20
 December 7th, 2018, 08:24 AM #4 Math Team   Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 13,612 Thanks: 954 "Numbers don't lie. They hide, but they don't lie." Numbers make some people numb.

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