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 = ______
8 × 10 = ______
81 + 20 = ______
30 + 20 = ______
76 − 10 = ______
37 + 10 = ______
56 + 10 = ______
83 + 20 = ______
51 − 10 = ______
4 × 10 = ______
57 − 10 = ______
27 − 10 = ______
7 × 10 = ______
32 + 10 = ______
81 − 10 = ______
28 − 10 = ______
58 + 10 = ______
65 − 10 = ______
89 + 20 = ______
15 + 20 = ______
