Question

12. Calculează:
83 m + 176 m =
243 hm + 1 453 hm =
698 dam - 509 dam =
10 000 cm - 468 cm =
8 x 15 cm =
15 x 39 km =
81 mm :9=
56 hm : 8 =
870 dam + 539 dam - 145 dam =
6 043 mm -1 342 mm + 27 mm =
25 km x 75 + 1 307 km - 493 km =
2 700 dm – 15 dm x 49 + 12 dm x 36 =
840 cm - 72 cm : 8 - 34 x 12 cm + 56 cm : 7 =
853 m + 81 m: 9 - 12 m: 4 x 156 =
134​

Answer 1

83 m + 176 m = 259 m

243 hm + 1 453 hm =  1696 hm

698 dam - 509 dam =  189 dam

10 000 cm - 468 cm =  9532 cm

8 x 15 cm =  120 cm

15 x 39 km =  585 km

81 mm: 9 =  9 mm

56 hm: 8 =7 hm

870 dam + 539 dam - 145 dam =

409 dam - 145 dam = 1264 dam

4701 mm + 27 mm = 4728 mm

25 km x 75 + 1 307 km - 493 km =

1875 km + 1 307 km - 493 km

3182 km  - 493 km = 2689 km

2 700 dm – 15 dm x 49 + 12 dm x 36 =

2700 dm - 735 dm + 432 dm = 2397 dm

840 cm - 72 cm : 8 - 34 x 12 cm + 56 cm : 7 =

840 cm - 9 cm - 408 cm + 8 cm = 431 cm

853 m + 81 m: 9 - 12 m: 4 x 156 -  134 =

​853m + 9m - 3 x 156 - 134 =

​853m + 9m - 468m - 134m =

862m - 468m - 134m =  260 m

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