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
94 − 10 = ______
86 − 10 = ______
25 + 20 = ______
12 + 10 = ______
87 + 20 = ______
89 + 10 = ______
2 × 10 = ______
62 − 10 = ______
77 + 20 = ______
13 + 10 = ______
84 − 10 = ______
1 × 10 = ______
71 − 10 = ______
85 + 20 = ______
82 − 10 = ______
53 − 10 = ______
76 + 20 = ______
26 + 20 = ______
64 + 10 = ______
54 + 10 = ______
