M. 1. 7.- Apply estimation strategies and rounding rules to real-world problems

Metric system

international system of units based on powers of ten

Estimation

A rough calculation of numbers

Rounding

Simplifying a number by removing decimal places or changing those places to zero

millimeter (mm)

This metric unit has the diameter of a pinhead

centimeter (cm)

This metric unit is the size of a fingernail

Meter (m)

This metric unit is about the size of a doorway(2 units over)

kilometer (km)

This metric unit is 2/3 of a mile

Gram (g)

This metric unit is equivalent to how much a small paper clip weighs

Kilogram (kg)

This metric unit has the same weight as a pineapple

degrees Celsius

metric unit of temperature

0 degrees Celsius

freezing point of water

10 degrees Celsius

Normal metric temperature

20 degrees Celsius

room temperature/warm metric temperature

30 degrees Celsius

hot metric temperature

Square units

Units used to measure area. One of this is the area of a square with sides that measure 1 unit

Volume

The amount of space taken up by a three-dimensional shape

Cubic units

Units used to measure volume. One of this is the volume of a cube with sides that measure 1 unit

Cu

The exponent 3 is used for metric volume and the abbreviation is this which is usually used for standard system units

Liters (L) and milliliters (mL)

What is liquid volume measured in

1 Liter

1000 milliliters/ 1,000 cubic centimeters makes up what

1mL

1cc =

Front-end

Estimation strategies that you should be familiar with include this estimation method that disregards every digit in a number after the first/focus on the first digits of numbers when adding or subtracting and solving a simpler problem

0

1/12 rounded

1

7/12 rounded

7

7 2/8 rounded

8

7 5/8 rounded

19

19 8/20 rounded

4

3 4/5 rounded