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
75 − 10 = ______
54 + 10 = ______
1 × 10 = ______
81 + 20 = ______
87 + 20 = ______
57 + 10 = ______
40 − 10 = ______
47 + 20 = ______
63 + 20 = ______
14 + 20 = ______
82 + 20 = ______
3 × 10 = ______
48 + 10 = ______
74 + 10 = ______
63 − 10 = ______
33 + 20 = ______
90 − 10 = ______
43 + 10 = ______
56 + 20 = ______
95 − 10 = ______
