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Números hasta el 20

Pérdida

Sottrai a 20

(1) Resta los números

14	-	5	= _____
15	-	6	= _____
20	-	3	= _____
13	-	6	= _____
20	-	4	= _____

10	-	10	= _____
19	-	6	= _____
13	-	7	= _____
13	-	8	= _____
16	-	8	= _____

18	-	6	= _____
11	-	10	= _____
16	-	3	= _____
19	-	6	= _____
11	-	2	= _____

(2) Resta los números y comprueba con la suma

20	-	5	= ___ porque 15 + 5 = _______
19	-	3	= ___ porque = _____________
14	-	6	= ___ porque = _____________
13	-	6	= ___ porque = _____________
20	-	6	= ___ porque = _____________

10	-	10	= ___ porque = _____________
15	-	7	= ___ porque = _____________
13	-	8	= ___ porque = _____________
13	-	8	= ___ porque = _____________
16	-	4	= ___ porque = _____________

(3) Calcula

10 + 6 = __
16 - 6 = __

10 + 10 = __
20 - 10 = __

10 + 4 = __
14 - 4 = __

10 + 7 = __
17 - 7 = __

10 + 9 = __
19 - 9 = __

10 + 5 = __
15 - 5 = __