Question

5*4=20 VI.LONG ANSWERS:- A. On an Abacus there are 4 beads in the thousands place 1 bead in the ones place and 2 beads in the tenth place and 9 beads in the hundreds place. What is the number? B. A box has 190 books another box has 480 books. Calculate the total number of books in both the boxes? C. Stephnen makes 3975 bottles of apple juice and 9271 bottles of mango juice .How many more bottles of mango juice did he make? D. There are 28 students in a row how many students would be there in 7 such rows? E. A container can hold 720 spoons how many spoons can be kept in 12 such containers? ALL THE BEST​

Answer 1

i am not sure but answer have to be 720

Answer 2

Answer:

The abacus, also called a counting frame, is a calculating tool which has been used since ancient times. It was used in the ancient Near East, Europe, China, and Russia, centuries before the adoption of the Arabic numeral system. The exact origin of the abacus has not yet emerged