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
7 × 10 = ______
56 − 10 = ______
82 + 20 = ______
43 + 20 = ______
3 × 10 = ______
44 − 10 = ______
34 − 10 = ______
6 × 10 = ______
68 − 10 = ______
72 + 10 = ______
83 + 20 = ______
40 + 10 = ______
63 − 10 = ______
22 − 10 = ______
16 + 20 = ______
93 − 10 = ______
55 + 20 = ______
4 × 10 = ______
81 + 10 = ______
43 − 10 = ______
