Math Drills
Adding Length (Different Units)
B-2Word Problems
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What this worksheet covers
- Topic
- Length (cm, mm, m)
- Worksheet
- Addition (Different Units)
At least one of the two lengths is written in a pair of units. Pairs such as m with cm, or cm with mm, mean the large side is added to the large side and the small side to the small side. Bare equations appear, the same shapes turn up in word problems that describe a scene, and everything is kept inside a range where nothing overflows.
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Adding across the divide, and setting the cm figure and the mm figure down as one number, is the error to look for. A small side that has passed ten, or a hundred, is the mark of it. Where one of the lengths carries no small-side figure, the large sides alone get added and the work ends there.
Only the way the two lengths are written has changed; adding each side to its own kind is the routine held over from Addition (Same Units). These two lessons settle the adding, and in Addition (With Carrying) the small side runs over.
- m, cm (Word Problems)3 questions
- cm, mm (Word Problems)3 questions
Questions & answers
Problems and answers on this worksheet
These are the problems in “Length (cm, mm, m)”, shown with their answers.
(1)The length of the table is 1m50cm, and the length of the bed is 2m40cm. Altogether, how many m and how many cm will it be? Answer □ □
Answer: 3m, 90cm
(2)In the gym, there is a rope that is 5m30cm and another that is 3m65cm. Altogether, how many m and how many cm will it be? Answer □ □
Answer: 8m, 95cm
(3)At the store, there is a tape that is 8m10cm and another that is 1m45cm. Altogether, how many m and how many cm will it be? Answer □ □
Answer: 9m, 55cm
(4)The height of the table is 25cm1mm, and the thickness of the book is 4cm7mm. Altogether, how long are they, in how many cm and how many mm? Answer □ □
Answer: 29cm, 8mm
(5)At the birthday party, there are two pieces of tape, one 12cm1mm long and the other 4cm8mm long. Altogether, how long are they, in how many cm and how many mm? Answer □ □
Answer: 16cm, 9mm
(6)The length of the umbrella is 20cm3mm, and the length of the pole is 8cm4mm. Altogether, how long are they, in how many cm and how many mm? Answer □ □
Answer: 28cm, 7mm
What to do next
More worksheets in this unit
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