7th grade math

About 7th grade math Android App

" Ratios & Proportional Relationships   Calculating unit rates based on ratios that include fractions. e.g. if cyclist travels 1/4 of a mile in 1/6 of one hour their speed can be calculated as 1½ miles/ hour. Identifying and showing proportional relationships View Related Worksheets and Resources (1 No.) Solving ratio and percentage problems with multiple steps. e.g. percentage increase, interest rates, etc. View Related Worksheets and Resources (8 No.) The Number System   Adding and subtracting rational numbers. e.g. adding and subtracting with negative numbers. View Related Worksheets and Resources (12 No.) Multiplying and dividing rational numbers. e.g. with negative numbers. View Related Worksheets and Resources (2 No.) Adding, subtracting, multiplying, and dividing with rational numbers to solve real-world problems. View Related Worksheets and Resources (1 No.)   Expressions & Equations   Adding, subtracting, factoring, and expanding linear expressions that include rational coefficients. Recognizing that, if an expression is rewritten in a different form, it can better show the relationship between quantities. e.g. y + 0.25y = 1.25y shows that a 25% increase is the same as multiplying by 1.25. Solving multi-step real-world problems involving positive and negative rational numbers in whole number, fractional, and/or decimal form and being able to mental estimate to determine if answers appear reasonable. View Related Worksheets and Resources (12 No.) Writing simple equations and inequalities to help solve real-world problems using variables to represent quantities. View Related Worksheets and Resources (4 No.)   Geometry   Calculating full dimensions from scale drawings and redrawing these at a bigger or smaller scale. Drawing figures from specified attributes including by hand, with a straight edge, with a protractor, and with other technology. Describing the 2-D shapes that are generated by slicing through 3-D shapes in a plane. Recalling and using the formulas for the area and the circumference of a circle. i.e. A = πr2 and C = πd Finding missing angles in a figure by writing and solving equations using knowledge of supplementary, complementary, and adjacent angles. Solving real-world problems that include calculating area, volume, and surface area a 2-D and 3-D objects. "