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
70 + 10 = ______
71 − 10 = ______
67 + 10 = ______
16 + 20 = ______
39 + 20 = ______
80 − 10 = ______
72 − 10 = ______
57 − 10 = ______
53 − 10 = ______
80 + 10 = ______
29 + 20 = ______
94 − 10 = ______
3 × 10 = ______
85 − 10 = ______
4 × 10 = ______
29 − 10 = ______
36 + 10 = ______
1 × 10 = ______
5 × 10 = ______
96 − 10 = ______
