Kids Calculator
The best way to learn how to use the calculator is to try it. The pictures and captions below provide an overview.
Comments Widget
Application Guide
Visualizer Bars:
+ , +
− , +
+ , −
∆%: The Greek letter Delta is used to
indicate a change.
∆%: From 2 to 3
2 [∆%] 3 [∆=]
∆ = (3 - 2) = 1
∆% = 1 ÷ 2 = 50%
∆%: From 8 to 10
8 [∆%] 10 [∆=]
∆ = (10 - 8) = 2
∆% = 2 ÷ 8 = 25%
∆%: From 4 to 2
4 [∆%] 2 [∆=]
∆ = (2 - 4) = -2
∆% = -2 ÷ 4 = -50%
∆%: General Equation
a [∆%] b [∆=]
∆ = (b - a)
∆% = (∆ ÷ a) × 100
Advanced:
Negative numbers:
e.g. -4 - 8 = 0 [-] 4 [=] [-] 8 [=] or 4 [-] [=] [=] [-] 8 [=]
-4 - (-8) = 0 [-] 4 [=] [+] 8 [=] or 4 [-] [=] [=] [+] 8 [=]
