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 = ______
22 − 10 = ______
77 + 20 = ______
8 × 10 = ______
63 + 20 = ______
27 + 20 = ______
85 + 20 = ______
62 + 20 = ______
71 + 20 = ______
45 + 10 = ______
33 − 10 = ______
67 + 10 = ______
6 × 10 = ______
56 − 10 = ______
3 × 10 = ______
38 + 10 = ______
9 × 10 = ______
24 + 20 = ______
52 + 10 = ______
66 − 10 = ______
