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
1 × 10 = ______
8 × 10 = ______
88 − 10 = ______
16 + 10 = ______
7 × 10 = ______
5 × 10 = ______
56 + 10 = ______
54 − 10 = ______
91 − 10 = ______
69 + 20 = ______
82 − 10 = ______
44 − 10 = ______
40 + 20 = ______
39 − 10 = ______
17 + 10 = ______
73 − 10 = ______
25 + 10 = ______
4 × 10 = ______
43 − 10 = ______
74 + 10 = ______
