Mary joins 2 lengths of wood together. One is 17.4cm long, the other one is 2.2cm long. How long is that altogether?
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Answer:
19.6 cm
Step-by-step explanation:
length 1 = 17.4 cm
length 2 = 2.2 cm
length altogether = L1 + L2
= 17.4 + 2.2
= 19.6 cm
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