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
23 − 10 = ______
12 + 20 = ______
54 + 10 = ______
4 × 10 = ______
51 + 10 = ______
29 − 10 = ______
14 + 20 = ______
7 × 10 = ______
76 − 10 = ______
8 × 10 = ______
37 − 10 = ______
45 + 20 = ______
88 − 10 = ______
62 − 10 = ______
40 + 10 = ______
36 + 10 = ______
17 + 20 = ______
9 × 10 = ______
73 + 20 = ______
25 − 10 = ______
