Developing an understanding of subtraction, Mathematics

Assignment Help:

DEVELOPING AN UNDERSTANDING OF SUBTRACTION :  The process of subtraction is the reverse of that of addition. Adding more to a collection to make it bigger is just the reverse of taking away or removing some to make it smaller. Let us look at the kinds of situations in which children would have to recognise that the solution of the problem requires that to subtract. Problems involving subtraction are more complex for children to handle than those involving addition. This is because they have to identify which quantity has to be taken away from which. This is very important because so far they were exposed to addition, where 2 + 3 = 3 + 2. But 9 - 3 is not the same as 3 - 9, that is, subtraction is, not commutative.

 


Related Discussions:- Developing an understanding of subtraction

Probability, A man enter a lucky draw that requires him to pick five differ...

A man enter a lucky draw that requires him to pick five different integers from 1 through 30 inclusive .he chooses his five number in such a way that the sum of their log base 10 i

CIECLE, HOW TO DRAW A TANGENT SEGMENTS TO A CIRCLE WHEN CENTRE IS NOT KNOWN...

HOW TO DRAW A TANGENT SEGMENTS TO A CIRCLE WHEN CENTRE IS NOT KNOWN?

Shares and dividends, to use newspaperto study and report on shares and div...

to use newspaperto study and report on shares and dividend

First order differential equations, In this section we will consider for so...

In this section we will consider for solving first order differential equations. The most common first order differential equation can be written as: dy/dt = f(y,t) As we wil

Steel bar to make a hard surface, Take the carburizing of a steel bar to ma...

Take the carburizing of a steel bar to make a hard surface. To obtain the desired hardness, we require to control the diffusion of carbon into the surface and the phases obtained d

Differentiate product rule functions, Differentiate following functions. ...

Differentiate following functions. Solution At this point there in fact isn't a lot of cause to use the product rule.  We will utilize the product rule.  As we add

Integers satisfy the inequality, How many integers satisfy the inequality |...

How many integers satisfy the inequality |10(x+1)/x^2+2x+3|=1? Solution) first thing thats not an inequality, and second thing its very easy if thats the question. the LHS = |10/

Fractions, kim had 1/2 an orange. she gave Linda 1/4 of this. What fraction...

kim had 1/2 an orange. she gave Linda 1/4 of this. What fraction of the whole orange did Linda get?

Determine the angle in hexagonal-shaped nut, The figure provided below show...

The figure provided below shows a hexagonal-shaped nut. What is the measure of ∠ABC?   a. 120° b. 135° c. 108° d. 144° a. The measure of an angle of a regula

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd