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
52 − 10 = ______
54 − 10 = ______
1 × 10 = ______
56 + 20 = ______
23 − 10 = ______
8 × 10 = ______
41 + 10 = ______
64 − 10 = ______
21 + 20 = ______
93 − 10 = ______
42 + 10 = ______
15 + 20 = ______
40 + 20 = ______
82 + 10 = ______
60 − 10 = ______
7 × 10 = ______
43 − 10 = ______
53 + 20 = ______
52 + 10 = ______
2 × 10 = ______
