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
8 × 10 = ______
54 + 20 = ______
72 − 10 = ______
39 + 20 = ______
35 − 10 = ______
2 × 10 = ______
7 × 10 = ______
48 − 10 = ______
1 × 10 = ______
3 × 10 = ______
46 − 10 = ______
41 − 10 = ______
76 + 10 = ______
9 × 10 = ______
89 + 10 = ______
71 + 10 = ______
39 + 10 = ______
59 + 20 = ______
58 + 20 = ______
92 − 10 = ______
