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
53 + 20 = ______
1 × 10 = ______
7 × 10 = ______
22 − 10 = ______
29 − 10 = ______
75 − 10 = ______
8 × 10 = ______
28 − 10 = ______
22 + 10 = ______
45 + 20 = ______
41 − 10 = ______
45 − 10 = ______
66 − 10 = ______
71 + 10 = ______
63 + 20 = ______
59 + 20 = ______
97 − 10 = ______
45 + 10 = ______
42 + 20 = ______
72 + 10 = ______
