Algebra applications

Question 1

Estimating

Answer 1

rounding numbers or approximating them to quickly perform math operations

Example: 23+39≈20+40 so the answer is about 60

Question 2

Rounding

Answer 2

A number is simplified to its closest multiple of 10, 100, 1,000, etc.

Example: 26 rounds to 30

Question 3

Partioning

Answer 3

A mental math strategy that involves breaking up numbers by place value before adding, subtracting, multiplying or dividing

Question 4

Compensation

Answer 4

A mental math strategy in which one number is changed to a value that simplifies the computation, such as a multiple of 10

Question 5

Benchmarking

Answer 5

Using benchmark numbers to estimate a mathematical expression

Question 6

Benchmark numbers

Answer 6

Numbers that are easily added, subracted, multiplied, or divided.

Example: 10, 25, 100

Question 7

Proportion

Answer 7

the relative size of elements in a design

Example: using larger images to make them the focal point in a layout

Question 8

Denominator

Answer 8

the bottom term of a fraction

Question 9

Numerator

Answer 9

the top term of a fraction

Question 10

Percentages

Answer 10

A way to represent part-to-whole relationships, where the percent is the part out of 100.

Question 11

Decomposing

Answer 11

Breaking up numbers by place value

Question 12

Composing

Answer 12

Recombining numbers broken up by place value

Question 13

Double Number Line Diagram

Answer 13

Consists of two parallel number lines, each representing a different unit

Used to visualize and compare ratios