Solving Problems and Puzzles 7/5/05 To recall multiplication facts and derive division facts from the 7 times table 7/5/05 To recall multiplication facts and derive division facts from the 7 times table 1 2 3 4 5 6 7 8 9 10 To recall multiplication facts and derive division facts from the 7 times table 1 2 3 4 5 6 7 8 9 10 7 14 21 28 35 42 49 56 63 70 To recall multiplication facts and derive division facts from the 7 times table 1 2 3 4 5 6 7 8 9 10 7 14 21 28 35 42 49 56 63 70 What is this multiplication fact? To recall multiplication facts and derive division facts from the 7 times table 1 2 3 4 5 6 7 8 9 10 7 14 21 28 35 42 49 56 63 70 4 x 7 = 28 What is this multiplication fact? To recall multiplication facts and derive division facts from the 7 times table 1 2 3 4 5 6 7 8 9 10 7 14 21 28 35 42 49 56 63 70 28 - 7 = 4 What is this division fact? …………….or To recall multiplication facts and derive division facts from the 7 times table 1 2 3 4 5 6 7 8 9 10 7 14 21 28 35 42 49 56 63 70 28 - 4 = 7 What is this division fact? …………….or To recall multiplication facts and derive division facts from the 7 times table 1 2 3 4 5 6 7 8 9 10 Hands up!! What division facts can you remember? LO: To solve mathematical problems and puzzles, explain methods and reasoning. 7/5/05 What fraction of these eight shapes are squares? Now what fraction of these eight shapes are squares? ½ of the shapes are squares, ½ of the shapes are circles/ Two squares are replaced with two circles. Now 1/3 of the shapes are squares, 2/3 of the shapes are circles. How many shapes did we start with? If 1/3 of the total number of shapes were squares what multiplication table will the total number of shapes be in? If 1/3 of the total number of shapes were squares what multiplication table will the total number of shapes be in? Total 3 6 9 12 15 18 21 1/3 squares 2/3 circles 1/5 of the cubes in this bag are are red and 4/5 are blue. Altogether how many cubes might be in the bag?