Cálculo mental 3º 2

Page 1

Cร LCULO MENTAL EJERCICIO 2 (3ยบ)


1

70 x 7



2

500 x 9



3

900 x 4



4

20 x 40



5

120 + 80



6

81 รท 9



7

420 รท 6



8

720 รท 8



9

200 -150



10

630 +150



11

160+340



12

920- 400



13

270+ 430



14

30 x 100



15

255 x 10



16

460 + 340



17

250 + 430



18

670 - 130



19

850 - 250



20

880 - 280



FIN


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