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
14 + 20 = ______
22 + 10 = ______
35 − 10 = ______
6 × 10 = ______
67 + 10 = ______
4 × 10 = ______
62 − 10 = ______
36 + 10 = ______
67 − 10 = ______
3 × 10 = ______
96 − 10 = ______
87 + 20 = ______
60 + 10 = ______
25 + 20 = ______
43 + 10 = ______
43 − 10 = ______
2 × 10 = ______
24 + 10 = ______
1 × 10 = ______
86 + 20 = ______
