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
37 − 10 = ______
62 − 10 = ______
38 − 10 = ______
51 − 10 = ______
5 × 10 = ______
80 + 20 = ______
48 + 20 = ______
76 + 20 = ______
21 + 20 = ______
72 + 20 = ______
45 + 20 = ______
56 − 10 = ______
29 + 10 = ______
74 + 20 = ______
8 × 10 = ______
1 × 10 = ______
42 + 20 = ______
3 × 10 = ______
2 × 10 = ______
81 + 20 = ______
