1. <span>The name of period that has 486 in the given number which is 751 486 is hundreds. period is considered to a group of places of the digits, like the given number 486 is the group of hundred because the highest number it contains is 400. => 400 + 80 + 6 => 4 hundreds + 8 tens + 6 ones => 486 while 751 is the period of hundred thousands. => 700 000 + 50 000 + 1 000 => 751 000
You have to make a tape diagram and divide it in to 9 parts because it is 5 out of 9 then you will make a bracket pointing to only 4 parts of the tape diagram then you do 36/9 and it will equal 4 so put 4 in to each part and so 4 x 4 is 16 so the answer is 16 people prefer historical books
