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
49 − 10 = ______
47 + 10 = ______
63 + 10 = ______
9 × 10 = ______
46 + 20 = ______
69 + 10 = ______
61 − 10 = ______
67 − 10 = ______
8 × 10 = ______
66 + 10 = ______
46 + 10 = ______
5 × 10 = ______
65 + 20 = ______
27 − 10 = ______
11 + 20 = ______
74 + 10 = ______
24 − 10 = ______
43 + 10 = ______
2 × 10 = ______
41 + 10 = ______
