Before playing Roman Numeral Bingo we talked about the ancient city of Pompeii. The kids read the books Pompeii...... Buried Alive, Vacation Under the Volcano and The Buried City of Pompeii and watched the video How The Earth Was Made..... Vesuvius.
Then we played Roman Numeral Bingo. Please feel free to print the game for personal or classroom use.
Roman Numerals are built with place value. Numbers 1-8 are built with the letters I and V. Tens values of 1-8 (10, 20, 30,....80) are built with the X and L. Hundreds values of 1-8 (100, 200, 300,...800) are built with the C and D. Thousands values are built with the M.
Nines are made from the letters in the first column; I, X, C and M. IX=9, XC=90, CM=900.
Looking at the letters that make up the place value digit, a smaller letter value preceding a larger letter value means subtract. For example; XL = 50-10 = 40. A larger letter value followed by a smaller letter value means add. For example; DCC=500+100+100 = 700.
The R column contains the values 1-9.
The O column contains the values 10-99.
The M column contains the values 100-999.
The A column contains the values 1000-4000.
The N column contains all numbers.
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