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Per 1 Math The Importance of Math Symbols During the Renaissance mathematical symbols were introduced. First used in 1537, the equal sign (=), the plus (+), and minus (-) sign helped the development of mathematics. Try the problems below. They are missing the symbols for the four operations-addition (+), subtraction (-), multiplication (x), and division (+). Work from left to right. Add the operation symbols between each pair of numbers so that the given answer can be reached. a. 5 +6-1+3-4 =9 el . same b. 7 + 3 + 4x 10 -2 = 70 begging C. 14+ 7 + 63 +3 + 3 9 = 10 End d. 59 + 2 + 2:9+3 =10 e. 42 -4 - 2 -16-10 = 10 110+12 + 10+14-12+ 10:12 = 12 13 - 7 19 60 20 10 = 15 Ilenge: Try writing SULU P icaving put tie operauon signs. Exchange them classmates and solve