Question

1)3/4м-18см 2)2/5дм+17см 3)3/8км-354 4)3/5м-42см 5)4/5дм-12мм 6)945м-2/5км 7)893см+1/4м 8)952м-5/8км

Answer 1

Ответ:1) 75-18=57 см

2) 4+17=21 см

3) 375-354=21 метр

4) 60-42=18 см

5) 80-12=68 мм

6) 945-400=545 м

7) 893+25=918 см

8) 952-625=327 м.

Пошаговое объяснение:

Answer 2

Ответ:

1)7см 2)21см 3)21м 4)18см 5)7см 88мм 6)545м 7)918см 8)327м

Пошаговое объяснение:

Answer 3

To solve these expressions, we'll convert all measurements to the same unit (meters) before performing the operations. Let's start:

1. 3/4м - 18см: First, convert centimeters to meters: 18 cm = 0.18 m Now, perform the subtraction: (3/4) m - 0.18 m = (3/4 - 0.18) m = 0.57 m

2. 2/5дм + 17см: Convert decimeters to meters: 1 dm = 0.1 m, so 2/5 dm = (2/5) * 0.1 m = 0.08 m Convert centimeters to meters: 17 cm = 0.17 m Now, perform the addition: 0.08 m + 0.17 m = 0.25 m

3. 3/8км - 354: Convert kilometers to meters: 1 km = 1000 m, so 3/8 km = (3/8) * 1000 m = 375 m Now, perform the subtraction: 375 m - 354 m = 21 m

4. 3/5м - 42см: Convert centimeters to meters: 42 cm = 0.42 m Now, perform the subtraction: (3/5) m - 0.42 m = (3/5 - 0.42) m = 0.18 m

5. 4/5дм - 12мм: Convert decimeters to meters: 1 dm = 0.1 m, so 4/5 dm = (4/5) * 0.1 m = 0.08 m Convert millimeters to meters: 12 mm = 0.012 m Now, perform the subtraction: 0.08 m - 0.012 m = 0.068 m

6. 945м - 2/5км: Convert kilometers to meters: 1 km = 1000 m, so 2/5 km = (2/5) * 1000 m = 400 m Now, perform the subtraction: 945 m - 400 m = 545 m

7. 893см + 1/4м: Convert centimeters to meters: 1 m = 100 cm, so 1/4 m = (1/4) * 100 cm = 25 cm = 0.25 m Now, perform the addition: 893 cm + 0.25 m = (893 + 25) cm = 918 cm = 9.18 m

8. 952м - 5/8км: Convert kilometers to meters: 1 km = 1000 m, so 5/8 km = (5/8) * 1000 m = 625 m Now, perform the subtraction: 952 m - 625 m = 327 m

Note: Always ensure to convert the units to the same before performing addition or subtraction operations.