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
7 × 10 = ______
53 + 10 = ______
45 + 10 = ______
84 + 20 = ______
56 − 10 = ______
46 + 20 = ______
15 + 10 = ______
3 × 10 = ______
76 − 10 = ______
6 × 10 = ______
2 × 10 = ______
4 × 10 = ______
98 − 10 = ______
48 − 10 = ______
34 + 20 = ______
68 + 10 = ______
9 × 10 = ______
1 × 10 = ______
47 + 10 = ______
24 − 10 = ______
