Addition: Addendum+Addendum = and one Addendum = and-another Addendum Subtraction: Subtraction-Subtraction = Subtraction-Subtraction = Subtraction+Differential Equation Solution Example Explanation

Question 1 (algebraic expression with x is regarded as a whole calculation) Question 2 (it can be simplified first, and then algebraic expression with x is regarded as a whole calculation) Question 3 (equation with brackets, method 1: remove brackets; Method 2: Consider the algebraic expression in brackets as a whole) Question 4 (If there are multiple X's, they should be combined into one X and then calculated) 6x-3x= 18? 1.5x+ 18 = 3xx+2x+ 18 = 7830 x+ 15x = 22.5 12x = 300-4x

The number of common fill-in-the-blank questions in simple equations is 5 less than that in B. Let B be X and A be (? ), the sum of a and b is (). A book has pages A, and Xiao Min reads pages B every day. After reading page c, there are still (? ) page.

The length of a rectangle is one meter, the width is three meters, the circumference is () meters and the area is () square meters. The law of multiplication and distribution is expressed in letters as (). Dad is m years old this year, and he is n years older than his son. m-n means (). If 3x+6=24, then 5x-7 = (? )。

There are X girls in Class Five (1), five less than boys, () boys and (? ) people. There are three consecutive natural numbers, the first is b, and the second is (? ), the third is (). The car travels for s kilometers within t hours, at () kilometers per hour; Ok, 100 km to (? ) hours? .

The fifth grade mathematics simple operation classification review uses the addition combination method to make simple calculations? (A+B)+C = A+(B+C) Example 1, 5.76+13.67+4.24+6.33 = (5.76+4.24)+(13.67+6.33) 37.24+23.79- 17.24 =37.24- 17.24+23.79 =20+23.79 =43.79 1