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
87 − 10 = ______
25 + 10 = ______
46 + 10 = ______
66 + 10 = ______
56 − 10 = ______
3 × 10 = ______
57 − 10 = ______
34 + 20 = ______
1 × 10 = ______
5 × 10 = ______
94 − 10 = ______
46 + 20 = ______
4 × 10 = ______
58 + 20 = ______
84 + 20 = ______
2 × 10 = ______
9 × 10 = ______
66 − 10 = ______
7 × 10 = ______
89 + 10 = ______
