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
5 × 10 = ______
69 + 10 = ______
17 + 20 = ______
76 − 10 = ______
93 − 10 = ______
37 − 10 = ______
32 + 20 = ______
64 + 10 = ______
68 + 10 = ______
65 + 20 = ______
9 × 10 = ______
7 × 10 = ______
59 − 10 = ______
31 + 10 = ______
25 + 10 = ______
81 − 10 = ______
23 + 10 = ______
3 × 10 = ______
55 + 20 = ______
49 + 20 = ______
