# Decimal time

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## 5th grade math

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1793 - During the revolution the French attempt to implement a system of decimal time, with 10 hours/day:100 minutes/hour:100 seconds/minute. It doesn't take.

Pray, my dear, quoth my mother, have you not forgot to wind up the clock ?

### The Short, Strange History of Decimal Time

For thousands of years, we've divided days into 24 hours, hours into 60 minutes, and minutes into 60 seconds. But why do we have to do that? Here's the story of the one gloriously failed attempt to decimalize time.

http://www.5cense.com/10/xing/04_Metropolis_clock.jpg

### Grab & Go Math Flashcards [Multiple Concepts] GROWING BUNDLE

These flash cards are incredibly useful for math test prep! Skills include: place value, area and perimeter, fractions, decimals, time, graphs and much much more.Place them in math centers, use as ticket out the door, or even with math games or morning work. Tons of uses!

### Decimals - Multiply and Divide Decimals (6 No-Prep Printables w/ Riddles!)

This is a set of 6 worksheets for independent practice of multiplying and dividing decimals w/ and w/o models. Decimals times decimals Decimals times whole numbers Whole numbers divided by decimals Decimals divided by decimals Decimals divided by whole numbers

### Grab & Go Math Flashcards [Multiple Concepts] GROWING BUNDLE

These flash cards are incredibly useful for math test prep! Skills include: place value, area and perimeter, fractions, decimals, time, graphs and much much more.Place them in math centers, use as ticket out the door, or even with math games or morning work. Tons of uses!

### Grab & Go Math Flashcards [Multiple Concepts] GROWING BUNDLE

These flash cards are incredibly useful for math test prep! Skills include: place value, area and perimeter, fractions, decimals, time, graphs and much much more.Place them in math centers, use as ticket out the door, or even with math games or morning work. Tons of uses!

### Decimals - Multiply and Divide Decimals (6 No-Prep Printables w/ Riddles!)

This is a set of 6 worksheets for independent practice of multiplying and dividing decimals w/ and w/o models. Decimals times decimals Decimals times whole numbers Whole numbers divided by decimals Decimals divided by decimals Decimals divided by whole numbers