Hi ,I'm trying to order maths scales which support addition. Eg they would show that 3 + 2 = 5, by putting objects on either sides of scales if this makes sense. Was hoping this would support 8+ ___ = 11 type questions which my Y1s find tricky Hope this makes sense -can't seem to find these in any catalogue. Alternatively, if you have any other ideas as to how I could make this learning more accessible, I would be grateful to hear it. Thanks, Char.