Welcome to the chinesecalculation treasure page.

 This is a Chinese Calculator. It's called and abacus. It is made of beads which are stored on place value bars. The two bars on the far right store the tenths and hundredths information for doing decimal calculation. Notice the decimal point and the commas have been drawn on the separator bar. Each of the two beads on the upper part of the bars represents five units, and each of the five beads on the lower part of the bars is one unit. Okay, let's add 8 + 4 on our Chinese calculator. 8 + 4 = step 1 Move the beads on the one's place value bar (directly to the left of the decimal point) to represent the number 8. We use a 5 point bead and three 1 point beads. Now we need to add four more. But notice, there aren't four more single beads that can be moved, only a 5 point and two 1 point beads. So, we will make four by moving the one 5 point bead down and then removing one of the 1 point beads, (because 5-1=4). step2 This is what it looks like. However, it is not in proper form, because the two 5 point beads really make ten. So we have ten plus two more which is 12. This is properly represented by moving one 1 point bead up on the tens place value bar and pushing the two 5 point beads back up on the ones place value bar. step3 So here you see the final answer. Try a harder addition example.

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