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 = ______
94 − 10 = ______
49 + 20 = ______
2 × 10 = ______
78 + 10 = ______
72 − 10 = ______
50 + 20 = ______
5 × 10 = ______
81 + 20 = ______
3 × 10 = ______
16 + 10 = ______
89 − 10 = ______
53 − 10 = ______
11 + 10 = ______
76 + 20 = ______
57 + 20 = ______
39 + 10 = ______
64 + 20 = ______
8 × 10 = ______
1 × 10 = ______
