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
38 − 10 = ______
56 + 10 = ______
68 − 10 = ______
1 × 10 = ______
32 + 20 = ______
50 + 20 = ______
4 × 10 = ______
88 − 10 = ______
8 × 10 = ______
89 − 10 = ______
65 + 10 = ______
91 − 10 = ______
19 + 20 = ______
3 × 10 = ______
81 + 20 = ______
72 + 20 = ______
38 + 20 = ______
30 + 20 = ______
59 + 20 = ______
53 − 10 = ______
