# data[].attributes.body
The ancient Chinese use to use bamboo rods to do their calculations that were based on a decimal system, which is like the one we use to day, back in the 2nd millennium B.C.E. The ancient Chinese are believed to have started using negative integers back in 300 B.C.E., which would make them the first to use this type of mathematics.

# data[].attributes.body
Arizona Department of Education. (2016) Common Core State Standards for Mathematics: Seventh Grade. Retrieved from  https://cms.azed.gov/home/GetDocumentFile?id=5b058e9603e2b31068b26bbf

Dividing decimals

Pierce, Rod. (5 Sep 2017). "Dividing Decimals". Math Is Fun. Retrieved 10 Oct 2018 from http://www.mathsisfun.com/dividing-decimals.html

multiplying decimals

Pierce, Rod. (4 Sep 2017). "Multiplying Decimals". Math Is Fun. Retrieved 10 Oct 2018 from http://www.mathsisfun.com/multiplying-decimals.html

adding and subtracting decimals

Pierce, Rod. (22 Sep 2017). "Adding Decimals". Math Is Fun. Retrieved 10 Oct 2018 from http://www.mathsisfun.com/adding-decimals.html

"Integers." Mathematics. . Retrieved October 11, 2018 from Encyclopedia.com: http://www.encyclopedia.com/education/news-wires-white-papers-and-books/integers

# data[].attributes.body
Adding and Subtracting Decimals:
You write the numbers down making sure that the decimals line up. Add zeros to the problem to hold places to make the numbers the same length.

Multiplying Decimals:
Multiply the problem as you would without the decimals, then put the decimal point in the answer - it will have as many decimal places as the two original numbers combined.

Dividing Decimals:
Multiply the divisor by as many 10's as necessary until we get a whole number.
Remember to multiply the dividend by the same number of 10's.

# data[].attributes.body
Pencil
2  8-sided dice
game board
foam cubes to use as markers

# data[].attributes.body
7.NS.A.1 Add and subtract integers and other rational numbers; represent addition and subtraction on a horizontal or vertical number line diagram. a. Describe situations in which opposite quantities combine to make 0. b. Understand p + q as the number located a distance |q| from p, in the positive or negative direction depending on whether q is positive or negative. Show that a number and its opposite have a sum of 0 (are additive inverses). Interpret sums of rational numbers by describing real-world context. c. Understand subtraction of rational numbers as adding the additive inverse, p – q = p + (–q). Show that the distance between two rational numbers on the number line is the absolute value of their difference, and apply this principle in real-world context. d. Apply properties of operations as strategies to add and subtract rational numbers.
7.NS.A.2 Multiply and divide integers and other rational numbers. a. Understand that multiplication is extended from fractions to rational numbers by requiring that operations continue to satisfy the properties of operations, particularly the distributive property, leading to products such as (–1)(–1) = 1 and the rules for multiplying signed numbers. Interpret products of rational numbers by describing real-world context. b. Understand that integers can be divided, provided that the divisor is not zero, and every quotient of integers (with non-zero divisor) is a rational number. If p and q are integers, then –(p/q) = (–p)/q = p/(–q). Interpret quotients of rational numbers by describing real-world context. c. Apply properties of operations as strategies to multiply and divide rational numbers. d. Convert a rational number to decimal form using long division; know that the decimal form of a rational number terminates in 0’s or eventually repeats.
7.NS.A.3 Solve mathematical problems and problems in real-world context involving the four operations with rational numbers. Computations with rational numbers extend the rules for manipulating fractions to complex fractions where a/b ÷ c/d when a,b,c,and d are all integers and b,c, and d ≠ 0.

# data[].attributes.body
You use decimals and integers in the real world, especially when dealing with money. If and when you have a bank account you will have to balance your account, and if you are not careful with your account you may go into the negative. When dealing with money, you may need to use multiplication if you wanted to buy more than one thing and wanted to estimate how much it cost you for those items.

# data[].attributes.body
First we will put mathematical problems on our game boards, using addition, subtraction, multiplication, and division of decimals.

Once our boards are made, we will take turns rolling the dice to see who goes first ( the person with the highest numbers that are added together).

When it is our turn to roll we will roll only one of the dice, and with that roll the person will figure out which problem that have written on their board corresponds to the answer on the dice.

Once that player has found a mathematical problem, they will pass the dice to the right for the next player to play.

We will all take turns rolling the dice placing our markers on our board to the corresponding problems. Once someone has filled their board with a line (horizontal, vertical, or diagonal), they win. But we will all work as a team to make sure that what they have down does correspond to their board and the roll of the dice.

# data[].attributes.body
The second game we will use the same board, but this time we will have the answer to the problems on the board and we will be working in teams. The answers may vary from 10 to -10. On our turns we will roll the 2 dice and figure out math problems using multiplication, division, addition, and subtraction to come up with the answers that we have on our board. Like the previous game which ever team gets a line (horizontal, vertical, or diagonal) wins the game. And of course we will work as a team to make sure that their calculations are correct.

# data[].attributes.headline
Ancient Chinese Bamboo Rods for mathematics

# data[].attributes.subject
Ancient Chinese Bamboo Rods for mathematics