education. on Instagram: "- The Instagram post by Craft Gallery (@5min__crafts) showcases a mental math trick for multiplying numbers by 7, demonstrated through a series of images showing the step-by-step process of calculating 7 multiplied by increasingly larger numbers of 7s (e.g., 7×7, 7×77, 7×777, up to 7×777777777). This method involves breaking down the multiplication into simpler steps, such as adding or subtracting specific numbers to arrive at the correct product efficiently. - The tric