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
6 × 10 = ______
65 − 10 = ______
21 + 10 = ______
37 + 20 = ______
3 × 10 = ______
22 − 10 = ______
26 + 20 = ______
89 − 10 = ______
24 + 20 = ______
83 + 20 = ______
23 + 10 = ______
30 + 10 = ______
9 × 10 = ______
2 × 10 = ______
61 + 20 = ______
86 − 10 = ______
26 + 10 = ______
96 − 10 = ______
1 × 10 = ______
81 − 10 = ______
