Sagot :
Answer:
1. 465 units
2. 42 m
3. 176 cm or 176 dm depends on what unit is given
4. 79 m
5. 162 dm
Step-by-step explanation:
1. 155 units + 155 units + 155 units = 3(155 units) = 465 units
2. 13 m + 8 m + 13 m + 8 m = 2(13 m + 8 m ) = 2(21 m) = 42
3. 44 cm + 44 cm + 44 cm + 44 cm = 4(44 cm) = 176 cm
you can change the units to the given unit
4. 20 m + 25 m + 17 m + 17 m = 79 m
5. s1 + s2 + s3 = 48 dm + 54 dm + 60 dm = 162 dm