Question

9C+20D=
8UM+20C=
8C+15U=
12D+12U=
35D+8U=
6C+2D+9U=
3D+3D+8U=
6C+7U=
12D+8U=
20C+2U=
34C+4U=

ayuda porfavor
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Answer 1

Respuesta:

9C+20D= 9(100) + 20(10) = 1100 = 11C

8UM+20C= 8(1000) + 20(100) = 10000 = 10UM

8C+15U= 8(100) + 15(1) = 815 = 815U

12D+12U= 12(10) + 12(1) = 132 = 132U

35D+8U= 35(10) + 8(1) = 358 = 358U

6C+2D+9U= 6(100) + 2(10) + 9(1) = 629U

3D+3D+8U= 3(10) + 3(10) + 8(1) = 68U

6C+7U= 6(100) + 7(1) = 607U

12D+8U= 12(10) + 8(1) = 128U

20C+2U= 20(100) + 2(1) = 2002U

34C+4U= 34(100) + 4(1)= 3404U

Explicación paso a paso:

suponiendo de que :

U = unidad = x1

D= decena = x10

C = centena = 100

UM = unidad de millar = 1000