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
12 + 10 = ______
55 + 10 = ______
6 × 10 = ______
72 + 20 = ______
14 + 10 = ______
8 × 10 = ______
75 − 10 = ______
62 − 10 = ______
3 × 10 = ______
1 × 10 = ______
57 − 10 = ______
65 + 20 = ______
21 + 10 = ______
33 − 10 = ______
81 + 10 = ______
49 − 10 = ______
69 − 10 = ______
9 × 10 = ______
89 + 10 = ______
2 × 10 = ______
