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
63 + 10 = ______
27 + 10 = ______
49 − 10 = ______
27 + 20 = ______
75 − 10 = ______
54 + 10 = ______
62 + 20 = ______
7 × 10 = ______
22 − 10 = ______
94 − 10 = ______
5 × 10 = ______
65 + 10 = ______
14 + 20 = ______
53 − 10 = ______
48 − 10 = ______
79 − 10 = ______
36 − 10 = ______
2 × 10 = ______
3 × 10 = ______
17 + 20 = ______
