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
86 + 10 = ______
3 × 10 = ______
80 − 10 = ______
1 × 10 = ______
54 + 20 = ______
37 + 10 = ______
56 + 20 = ______
24 + 20 = ______
20 + 10 = ______
49 + 10 = ______
42 − 10 = ______
17 + 10 = ______
77 − 10 = ______
9 × 10 = ______
59 + 10 = ______
84 + 20 = ______
23 + 20 = ______
61 − 10 = ______
57 − 10 = ______
8 × 10 = ______
