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
2 × 10 = ______
8 × 10 = ______
58 + 10 = ______
5 × 10 = ______
4 × 10 = ______
6 × 10 = ______
9 × 10 = ______
29 + 20 = ______
63 + 20 = ______
67 − 10 = ______
1 × 10 = ______
61 − 10 = ______
40 + 20 = ______
59 + 10 = ______
72 − 10 = ______
25 + 10 = ______
83 + 10 = ______
13 + 20 = ______
55 + 20 = ______
76 + 10 = ______
