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
4 × 10 = ______
29 + 20 = ______
81 − 10 = ______
6 × 10 = ______
2 × 10 = ______
59 + 20 = ______
43 − 10 = ______
23 − 10 = ______
5 × 10 = ______
58 + 20 = ______
96 − 10 = ______
82 + 10 = ______
84 + 10 = ______
61 − 10 = ______
7 × 10 = ______
30 − 10 = ______
56 + 20 = ______
67 − 10 = ______
32 − 10 = ______
23 + 20 = ______
