Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
46 − 10 = ______
19 + 20 = ______
22 + 10 = ______
49 + 10 = ______
88 + 20 = ______
34 + 10 = ______
27 + 20 = ______
40 + 10 = ______
42 − 10 = ______
22 + 20 = ______
96 − 10 = ______
37 − 10 = ______
87 + 10 = ______
38 + 20 = ______
12 + 10 = ______
78 − 10 = ______
28 + 10 = ______
63 + 20 = ______
74 − 10 = ______
5 × 10 = ______
