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
40 + 20 = ______
7 × 10 = ______
43 − 10 = ______
6 × 10 = ______
2 × 10 = ______
34 + 20 = ______
51 + 10 = ______
12 + 10 = ______
3 × 10 = ______
9 × 10 = ______
61 − 10 = ______
73 + 20 = ______
23 − 10 = ______
61 + 20 = ______
32 + 10 = ______
67 − 10 = ______
72 + 20 = ______
35 − 10 = ______
50 − 10 = ______
5 × 10 = ______
