Use drawings, words, or numbers to explain how you got your answer.
1) A box contains blue (B) marbles, green (G) marbles, red (R) marbles, and yellow (Y) marbles. Each color marble weighs a different amount. You can use a balance scale to find their weights as shown. How many yellow marbles will it take to balance one blue marble?
2) Mary found beads of different shapes, and weights. He compared the weights of the beads by using a balance scale, as shown below. What is the weight of the triangular bead?
Answer for sheet # 253
1)12 yellow marbles to balance one blue marble
2) Circle = 4 grams
Triangle = 7 grams