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
83 − 10 = ______
16 + 20 = ______
5 × 10 = ______
43 + 20 = ______
1 × 10 = ______
24 + 20 = ______
17 + 20 = ______
82 − 10 = ______
86 − 10 = ______
75 + 10 = ______
18 + 10 = ______
31 + 10 = ______
49 + 20 = ______
7 × 10 = ______
2 × 10 = ______
84 + 10 = ______
35 − 10 = ______
11 + 10 = ______
15 + 20 = ______
49 − 10 = ______
