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 = ______
22 − 10 = ______
1 × 10 = ______
5 × 10 = ______
8 × 10 = ______
55 − 10 = ______
24 + 20 = ______
35 + 20 = ______
28 + 10 = ______
77 + 20 = ______
62 + 20 = ______
41 + 20 = ______
3 × 10 = ______
65 + 20 = ______
46 − 10 = ______
58 − 10 = ______
31 + 10 = ______
25 + 10 = ______
93 − 10 = ______
64 + 10 = ______
