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
4 × 10 = ______
8 × 10 = ______
76 − 10 = ______
74 + 20 = ______
85 − 10 = ______
59 + 20 = ______
33 + 10 = ______
30 + 20 = ______
24 − 10 = ______
37 − 10 = ______
83 − 10 = ______
52 − 10 = ______
89 + 10 = ______
76 + 20 = ______
68 + 20 = ______
31 + 10 = ______
1 × 10 = ______
2 × 10 = ______
5 × 10 = ______
43 + 20 = ______
