numbers.
7) 6, 7, 8 and 9 are called
a. butterfly b. parrot
c. peacock
d. pigeon
calculator.
8) Abacus is a
a. logical
b. thumb
c. machine
d. human
9) Abacus scale is in
a. square
b. triangle
shape.
c. rectangle
d. cube
10) The value of closed fist is
b. 15
a. 00
c. 50
d. 55
Answers
Answered by
2
Step-by-step explanation:
6,7,8and 9 are called _ numbers
Answered by
1
Numbers 6, 7, 8, 9 are called butterfly numbers.
Which numbers are called butterfly numbers?
In ones = 6, 7, 8, 9
In tens 60, 70, 80, 90
In hundreds = 600, 700, 800, 900
In thousands = 6000, 7000, 8000, 9000
and so on.
Why these numbers are called butterfly numbers?
Because, while doing addition and subtraction of the numbers 6, 7, 8, and 9 with the help of the abacus we use the index and thumb fingers like a butterfly.
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