Page 289 - NUMINO_WB_6A
P. 289
103-P3-1
Word Problems
If you put 6 weights on the left and 28 pencils on the right, the balance scale is
balanced. How many more pencils do you need to put on the right if you put 3
more weights on the left?
Step 1. What do you need to find after reading the problem above?
Step 2. Express the sentence above using a picture.
28 pencils 9 weights
Step 3. Write a proportion by putting a as the number of pencils by looking at the
picture above.
number of weights
number of pencils
Step 4. Use a cross product to find the number of pencils by looking at the
proportion in Step 3 .
Word Problems
If you put 6 weights on the left and 28 pencils on the right, the balance scale is
balanced. How many more pencils do you need to put on the right if you put 3
more weights on the left?
Step 1. What do you need to find after reading the problem above?
Step 2. Express the sentence above using a picture.
28 pencils 9 weights
Step 3. Write a proportion by putting a as the number of pencils by looking at the
picture above.
number of weights
number of pencils
Step 4. Use a cross product to find the number of pencils by looking at the
proportion in Step 3 .
