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 = ______
33 + 20 = ______
91 − 10 = ______
5 × 10 = ______
56 + 10 = ______
76 − 10 = ______
28 + 20 = ______
17 + 10 = ______
26 + 10 = ______
89 − 10 = ______
12 + 10 = ______
79 + 20 = ______
74 + 10 = ______
7 × 10 = ______
21 + 10 = ______
1 × 10 = ______
29 + 10 = ______
2 × 10 = ______
75 − 10 = ______
47 + 10 = ______
