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
59 + 10 = ______
49 − 10 = ______
21 − 10 = ______
12 + 20 = ______
61 + 10 = ______
1 × 10 = ______
69 + 10 = ______
9 × 10 = ______
2 × 10 = ______
72 − 10 = ______
3 × 10 = ______
5 × 10 = ______
31 + 20 = ______
62 − 10 = ______
85 + 20 = ______
13 + 10 = ______
85 − 10 = ______
46 + 10 = ______
26 + 20 = ______
24 + 20 = ______
