To add two numbers, do I need a Create Value block, or can Tell show the sum?

Q: To add two numbers, do I need a Create Value block, or can Tell show the sum?

Both work! A Tell block can do the maths itself: "The sum is " + (a + b). But watch the brackets. B4Coder works from left to right. Once there are words at the start, every + after them joins text. So "The sum is " + a + b joins the 4 and the 5 side by side and shows 45. Use Create Value (sum = a + b) when you need the answer again later, or to see it in the Values tab. Just printing it once? Doing it in Tell is fine.

Adding Two Numbers: Create a Value or Just Tell?

Both work! A Tell block can do the maths itself: "The sum is " + (a + b).

But watch the brackets. B4Coder works from left to right. Once there are words at the start, every + after them joins text. So "The sum is " + a + b joins the 4 and the 5 side by side and shows 45.

Use Create Value (sum = a + b) when you need the answer again later, or to see it in the Values tab. Just printing it once? Doing it in Tell is fine.

Try it

Open it in the editor and run it, then change it and see what happens.

ExampleWith brackets: adds Try it

Start
Ask “First number?” and store the answer in a
Ask “Second number?” and store the answer in b
Tell "The sum is " + (a + b)
End

You type45It showsThe sum is 9

1a = int(input("First number? "))2b = int(input("Second number? "))3print("The sum is " + str(a + b))

ExampleWithout brackets: joins Try it

Start
Ask “First number?” and store the answer in a
Ask “Second number?” and store the answer in b
Tell "The sum is " + a + b
End

You type45It showsThe sum is 45

1a = int(input("First number? "))2b = int(input("Second number? "))3print("The sum is " + str(a) + str(b))

To add two numbers, do I need a Create Value block, or can Tell show the sum?

Try it

More questions

To add two numbers, do I need a Create Value block, or can Tell show the sum?

Try it

More questions