What is the answer when you add 7 hundreds, 4 tens, and 3 ones?
Understand the value of each digit in a 3 digit number Use place value pictures to represent addition & subtraction equations Practice solving equations with 3 digit numbers
3 Digit Addition & Subtraction using Place Value Pictures
Place Value - the value given to each digit in a number based on where it lies in the number; ones, tens, hundreds, etc. Addition - combining two or more numbers to find the sum Subtraction - taking one number away from another to find the difference
The first written use of place value symbols was in the Babylonian Empire, around 2000 BCE. The first publication of the algorithm for addition and subtraction using place value pictures was in the 9th century. In the 15th century, Leonardo Pisano, a famous mathematician from Pisa, introduced the modern Arabic numeral system and place value notation.
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Work together in pairs: What is the sum or difference when you add or subtract the 3-digit numbers shown in the place value pictures?
Work together in pairs: Question: What is the difference between the two numbers shown in the place value picture below?Place value picture: 462 - 327
Brain break: Draw a silly potato with legs and a big smile!
What is the sum of 243 and 156?
What is the difference between 874 and 325?
Which digit is in the hundreds place in the number 578?
What should be added to 357 to make it equal to 564?
What should be subtracted from 972 to make it equal to 623?