Light-Up Dance Floor: Split the Tiles to Multiply
0 / 9Light-Up Dance Floor: Split the Tiles to Multiply
Break a big floor into two smaller rectangles, find each area, and add.
Two-color floors
Each floor tile is a square that is 1 foot on each side. Part A lights up dark and part B lights up light.
1.
Nadia's dance floor is 4 feet wide and 9 feet long.
Part A: 4 × 5 = square feet
Part B: 4 × 4 = square feet
Whole floor: 4 × 9 = square feet
2.
Which expression matches how this floor is split?
3.
Coach Dana's floor is 6 feet wide and 7 feet long. She splits it into a top part and a bottom part.
Top part A: square feet
Bottom part B: square feet
So 6 × 7 =
Ways to split
Use two easier multiplication facts to find a harder one.
4.
Each floor is split into two parts. Match each whole floor to its two parts.
5.
Jada's floor is 6 feet wide and 8 feet long.
Circle every split that gives the area of Jada's whole floor.
Circle every split that gives the area of Jada's whole floor.
6.
Mateo knows 8 × 5 = 40, but he does not know 8 × 7. He splits his 8 ft by 7 ft floor like this.
8 × 7 = (8 × 5) + (8 × )
8 × 7 = 40 +
8 × 7 =
7.
Which floor is split to show (5 × 5) + (5 × 4)?
Show the split
Draw and explain your thinking.
8.
Draw one straight line to split this 4 ft by 8 ft floor into two rectangles. Write the area of each part, then add them.
9.
Rosa wants to find 7 × 6. She splits a 7 ft by 6 ft floor into two parts that are each 7 ft by 3 ft. Will her way work? Explain.