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
83 − 10 = ______
82 + 10 = ______
12 + 10 = ______
15 + 10 = ______
80 + 20 = ______
56 − 10 = ______
47 + 10 = ______
63 + 20 = ______
63 − 10 = ______
38 + 20 = ______
36 − 10 = ______
16 + 10 = ______
2 × 10 = ______
1 × 10 = ______
30 + 20 = ______
11 + 10 = ______
13 + 20 = ______
51 + 10 = ______
9 × 10 = ______
64 − 10 = ______
