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
9 × 10 = ______
31 + 10 = ______
2 × 10 = ______
37 − 10 = ______
45 + 20 = ______
15 + 10 = ______
28 + 10 = ______
4 × 10 = ______
35 + 10 = ______
42 − 10 = ______
7 × 10 = ______
30 + 10 = ______
1 × 10 = ______
39 − 10 = ______
25 + 10 = ______
41 + 10 = ______
5 × 10 = ______
51 + 20 = ______
60 + 20 = ______
74 + 10 = ______
