The question is asking us to add 268∙12+268∙23+732∙35
The decimal numbers are added to the decimal numbers ,the digit at hundredth place are 2,3,5 which on addition gives 10 .We write 0 at the bottom and 1 is carried to the tenths place .The digit at tenths place are 1,2,3 which on addition will give 6 to this 1 is added to give 7.The digit at unit place are 8,8,2 which on addition will give 18 .1 is carried to the tens place the digit at tens place are 6,6,3 which on addition will give 15 to this 1 which was carried is added to give 16.The 1 is carried to hundred place The numbers at hundred place are 2,2,7 which on addition gives us 11 to this 1 carried is added to give 12.
268.12
268.23
732∙35
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1268.70
The numbers 268∙12+268∙23+732∙35 on addition will give 1268.70