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
76 + 10 = ______
9 × 10 = ______
71 − 10 = ______
80 − 10 = ______
76 + 20 = ______
31 + 10 = ______
4 × 10 = ______
30 + 10 = ______
16 + 20 = ______
75 + 10 = ______
8 × 10 = ______
71 + 10 = ______
21 − 10 = ______
19 + 20 = ______
1 × 10 = ______
33 − 10 = ______
89 + 10 = ______
87 + 20 = ______
36 + 10 = ______
3 × 10 = ______
