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
73 + 10 = ______
4 × 10 = ______
77 − 10 = ______
89 + 10 = ______
82 + 10 = ______
30 − 10 = ______
70 + 10 = ______
29 − 10 = ______
48 + 20 = ______
2 × 10 = ______
54 − 10 = ______
72 + 10 = ______
38 + 20 = ______
26 + 10 = ______
63 − 10 = ______
77 + 10 = ______
69 − 10 = ______
12 + 10 = ______
8 × 10 = ______
56 + 10 = ______
