These topic-focused SATs questions at the end of a unit will help to test and extend students understanding as well as helping them to prepare for SATs next year. BE and CF are two equal altitudes of a triangle ABC. How do you know.
Subtract the original number from the answer.
Bubbly Maths - Fun Maths Workshops Shows was live. Subtract the original number from the answer. 1 3 6 10 and 15 are triangular numbers. Visit The Math Lab for the algebra behind this math magic.