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
82 − 10 = ______
57 − 10 = ______
50 + 20 = ______
56 − 10 = ______
71 + 10 = ______
85 + 20 = ______
75 + 10 = ______
57 + 20 = ______
96 − 10 = ______
4 × 10 = ______
40 + 10 = ______
53 − 10 = ______
2 × 10 = ______
23 + 10 = ______
52 + 10 = ______
79 − 10 = ______
63 − 10 = ______
53 + 20 = ______
64 + 10 = ______
44 + 20 = ______
