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
95 − 10 = ______
83 + 10 = ______
7 × 10 = ______
83 − 10 = ______
65 + 10 = ______
29 + 10 = ______
81 − 10 = ______
74 + 20 = ______
9 × 10 = ______
2 × 10 = ______
83 + 20 = ______
61 − 10 = ______
60 + 20 = ______
31 − 10 = ______
18 + 20 = ______
6 × 10 = ______
45 + 10 = ______
20 + 10 = ______
1 × 10 = ______
35 + 20 = ______
