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
9 × 10 = ______
24 − 10 = ______
56 + 10 = ______
56 + 20 = ______
2 × 10 = ______
29 + 10 = ______
34 + 10 = ______
7 × 10 = ______
21 + 10 = ______
15 + 10 = ______
18 + 20 = ______
4 × 10 = ______
6 × 10 = ______
8 × 10 = ______
45 + 10 = ______
22 − 10 = ______
25 − 10 = ______
51 + 20 = ______
37 + 20 = ______
89 − 10 = ______
