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
84 + 10 = ______
9 × 10 = ______
82 + 20 = ______
43 + 20 = ______
34 − 10 = ______
68 − 10 = ______
31 + 20 = ______
4 × 10 = ______
48 + 20 = ______
5 × 10 = ______
74 − 10 = ______
3 × 10 = ______
41 + 10 = ______
95 − 10 = ______
32 + 10 = ______
18 + 20 = ______
2 × 10 = ______
19 + 20 = ______
37 − 10 = ______
44 + 10 = ______
