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 = ______
29 + 20 = ______
3 × 10 = ______
36 + 20 = ______
88 + 10 = ______
91 − 10 = ______
79 + 10 = ______
42 − 10 = ______
66 + 20 = ______
1 × 10 = ______
26 − 10 = ______
52 + 20 = ______
63 − 10 = ______
7 × 10 = ______
89 + 10 = ______
99 − 10 = ______
54 + 20 = ______
30 + 10 = ______
45 − 10 = ______
79 − 10 = ______
