Answer:
480 cm
Step-by-step explanation:
A- What is asked?
centimeters of ribbon that Maria need to decorate the sides of a bed sheet
G- What are given facts?
160 cm and 80 cm
O- What operation to be use?
Addition and Multiplication
N- What is the number sentence?
(160 + 80) =N (240 x 2)=N (2- refers to the two sides/facts we have)
S- How do you solve the number sentence?
160+80 = 240
240 x 2 = 480
A- What is the answer?
480 cm.
Maria needs a 480 cm ribbon to decorate the sides of the bed.
