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
23 − 10 = ______
28 − 10 = ______
1 × 10 = ______
30 − 10 = ______
17 + 10 = ______
80 + 10 = ______
37 − 10 = ______
69 + 10 = ______
61 + 20 = ______
2 × 10 = ______
63 + 10 = ______
4 × 10 = ______
14 + 20 = ______
89 + 20 = ______
95 − 10 = ______
46 + 10 = ______
86 + 10 = ______
3 × 10 = ______
36 + 10 = ______
74 − 10 = ______
