Last week’s answer: 253 + 747 = 1000. The original question (2_3 + _4_ = 1000) is exactly the same as 243 + ___ = 1000, and becomes a simple subtraction problem. 1000 – 243 = 757, so those are the digits. Simply substitute them in to get the answer.
This week’s problem: A supermarket says that the sugar it now sells has 25% extra free. How much will it weigh if the sugar used to have 400g in the tub?
The answer will be in next week’s weekly problem.